./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC --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_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC --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 0.2.0-7b2dab5 [2021-10-11 00:21:24,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:24,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:24,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:24,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:24,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:24,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:24,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:24,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:24,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:24,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:24,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:24,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:24,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:24,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:24,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:24,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:24,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:24,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:24,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:24,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:24,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:24,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:24,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:24,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:24,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:24,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:24,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:24,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:24,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:24,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:24,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:24,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:24,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:24,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:24,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:24,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:24,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:24,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:24,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:24,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:24,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-11 00:21:24,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:24,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:24,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:24,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:24,364 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:24,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:24,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:24,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:24,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:24,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:24,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:24,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:24,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:24,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:24,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:24,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:24,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:24,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:24,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:24,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:24,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:24,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:24,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:21:24,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:24,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:24,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2021-10-11 00:21:24,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:24,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:24,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:24,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:24,702 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:24,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:24,782 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6c6ce4566/3e77bd7ba31c4a2194c75e08c5e886ea/FLAG558c194d8 [2021-10-11 00:21:25,540 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:25,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:25,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6c6ce4566/3e77bd7ba31c4a2194c75e08c5e886ea/FLAG558c194d8 [2021-10-11 00:21:25,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6c6ce4566/3e77bd7ba31c4a2194c75e08c5e886ea [2021-10-11 00:21:25,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:25,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:25,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:25,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:25,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:25,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:25" (1/1) ... [2021-10-11 00:21:25,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1fd79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:25, skipping insertion in model container [2021-10-11 00:21:25,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:25" (1/1) ... [2021-10-11 00:21:25,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:25,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:26,774 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-11 00:21:26,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:26,844 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:27,135 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-11 00:21:27,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:27,265 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:27,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27 WrapperNode [2021-10-11 00:21:27,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:27,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:27,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:27,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:27,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:27,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:27,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:27,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:27,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... [2021-10-11 00:21:27,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:27,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:27,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:27,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:27,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:27,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:21:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:21:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:21:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:27,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:21:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:21:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-11 00:21:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:21:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:27,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:28,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:28,927 INFO L299 CfgBuilder]: Removed 107 assume(true) statements. [2021-10-11 00:21:28,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:28 BoogieIcfgContainer [2021-10-11 00:21:28,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:28,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:28,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:28,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:28,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:25" (1/3) ... [2021-10-11 00:21:28,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544aec41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:28, skipping insertion in model container [2021-10-11 00:21:28,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:27" (2/3) ... [2021-10-11 00:21:28,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544aec41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:28, skipping insertion in model container [2021-10-11 00:21:28,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:28" (3/3) ... [2021-10-11 00:21:28,949 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:28,963 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:28,968 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:21:28,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:21:29,010 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:29,011 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:29,011 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:29,011 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:29,011 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:29,012 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:29,012 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:29,012 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:29,028 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2021-10-11 00:21:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:21:29,033 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:29,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:29,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:29,040 INFO L82 PathProgramCache]: Analyzing trace with hash -653166678, now seen corresponding path program 1 times [2021-10-11 00:21:29,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:29,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048746787] [2021-10-11 00:21:29,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:29,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048746787] [2021-10-11 00:21:29,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:29,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:29,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554505582] [2021-10-11 00:21:29,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:29,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:29,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:29,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:29,370 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2021-10-11 00:21:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:29,429 INFO L93 Difference]: Finished difference Result 235 states and 307 transitions. [2021-10-11 00:21:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:29,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 00:21:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:29,442 INFO L225 Difference]: With dead ends: 235 [2021-10-11 00:21:29,443 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 00:21:29,446 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 [2021-10-11 00:21:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 00:21:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-11 00:21:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:21:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-10-11 00:21:29,496 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 9 [2021-10-11 00:21:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:29,496 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-10-11 00:21:29,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-10-11 00:21:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 00:21:29,499 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:29,499 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] [2021-10-11 00:21:29,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:21:29,500 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:29,501 INFO L82 PathProgramCache]: Analyzing trace with hash 950528437, now seen corresponding path program 1 times [2021-10-11 00:21:29,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:29,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749137638] [2021-10-11 00:21:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:21:29,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749137638] [2021-10-11 00:21:29,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:29,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:29,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926853901] [2021-10-11 00:21:29,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:21:29,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:21:29,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:21:29,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:21:29,722 INFO L87 Difference]: Start difference. First operand 148 states and 186 transitions. Second operand 4 states. [2021-10-11 00:21:29,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:29,782 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2021-10-11 00:21:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:21:29,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-10-11 00:21:29,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:29,785 INFO L225 Difference]: With dead ends: 290 [2021-10-11 00:21:29,785 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 00:21:29,787 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 [2021-10-11 00:21:29,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 00:21:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-11 00:21:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:21:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2021-10-11 00:21:29,802 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 40 [2021-10-11 00:21:29,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:29,803 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2021-10-11 00:21:29,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:21:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2021-10-11 00:21:29,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-11 00:21:29,805 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:29,805 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] [2021-10-11 00:21:29,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:21:29,806 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:29,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:29,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1298860141, now seen corresponding path program 1 times [2021-10-11 00:21:29,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:29,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592383632] [2021-10-11 00:21:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:30,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:30,150 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:30,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:30,235 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:30,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:21:30,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:30 BoogieIcfgContainer [2021-10-11 00:21:30,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:30,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:30,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:30,404 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:30,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:28" (3/4) ... [2021-10-11 00:21:30,408 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:30,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:30,412 INFO L168 Benchmark]: Toolchain (without parser) took 4776.04 ms. Allocated memory was 96.5 MB in the beginning and 188.7 MB in the end (delta: 92.3 MB). Free memory was 71.5 MB in the beginning and 104.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,414 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 73.3 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:30,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1630.49 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 71.5 MB in the beginning and 56.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 180.38 ms. Allocated memory is still 125.8 MB. Free memory was 56.2 MB in the beginning and 85.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,426 INFO L168 Benchmark]: Boogie Preprocessor took 80.40 ms. Allocated memory is still 125.8 MB. Free memory was 85.0 MB in the beginning and 80.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,427 INFO L168 Benchmark]: RCFGBuilder took 1398.46 ms. Allocated memory was 125.8 MB in the beginning and 188.7 MB in the end (delta: 62.9 MB). Free memory was 80.8 MB in the beginning and 143.2 MB in the end (delta: -62.4 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,431 INFO L168 Benchmark]: TraceAbstraction took 1470.42 ms. Allocated memory is still 188.7 MB. Free memory was 142.2 MB in the beginning and 105.8 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:30,432 INFO L168 Benchmark]: Witness Printer took 6.35 ms. Allocated memory is still 188.7 MB. Free memory is still 104.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:30,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 73.3 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1630.49 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 71.5 MB in the beginning and 56.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 180.38 ms. Allocated memory is still 125.8 MB. Free memory was 56.2 MB in the beginning and 85.0 MB in the end (delta: -28.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.40 ms. Allocated memory is still 125.8 MB. Free memory was 85.0 MB in the beginning and 80.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1398.46 ms. Allocated memory was 125.8 MB in the beginning and 188.7 MB in the end (delta: 62.9 MB). Free memory was 80.8 MB in the beginning and 143.2 MB in the end (delta: -62.4 MB). Peak memory consumption was 43.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1470.42 ms. Allocated memory is still 188.7 MB. Free memory was 142.2 MB in the beginning and 105.8 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.35 ms. Allocated memory is still 188.7 MB. Free memory is still 104.7 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 The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4185. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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={18446744073709551617:18446744073709551614}, 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}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={18446744073709551617:18446744073709551614}, 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, 88 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 222 SDtfs, 98 SDslu, 288 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=148occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 2009 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 0.2.0-7b2dab5 [2021-10-11 00:21:32,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:32,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:32,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:32,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:32,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:32,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:32,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:32,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:32,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:32,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:32,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:32,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:32,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:32,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:32,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:32,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:32,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:32,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:32,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:32,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:32,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:33,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:33,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:33,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:33,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:33,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:33,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:33,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:33,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:33,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:33,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:33,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:33,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:33,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:33,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:33,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:33,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:33,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:33,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:33,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:33,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-10-11 00:21:33,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:33,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:33,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:33,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:33,085 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:33,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:33,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:33,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:21:33,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:21:33,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:21:33,087 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:21:33,087 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:21:33,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:33,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:33,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:21:33,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:33,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:33,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:21:33,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:21:33,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:33,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:21:33,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:21:33,090 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:21:33,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:21:33,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:21:33,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:33,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:21:33,091 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f04f938fee3705b6ab112999ad746b29d3f93a10 [2021-10-11 00:21:33,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:33,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:33,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:33,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:33,536 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:33,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:33,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6784dc197/8623573d8d65436884a1edbe1602147f/FLAGa698c3695 [2021-10-11 00:21:34,394 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:34,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:34,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6784dc197/8623573d8d65436884a1edbe1602147f/FLAGa698c3695 [2021-10-11 00:21:34,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/data/6784dc197/8623573d8d65436884a1edbe1602147f [2021-10-11 00:21:34,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:34,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:34,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:34,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:34,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:34,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:34" (1/1) ... [2021-10-11 00:21:34,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d08ba14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:34, skipping insertion in model container [2021-10-11 00:21:34,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:34" (1/1) ... [2021-10-11 00:21:34,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:34,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:35,768 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-11 00:21:35,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:35,834 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:36,178 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-10-11 00:21:36,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:36,302 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:36,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36 WrapperNode [2021-10-11 00:21:36,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:36,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:36,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:36,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:36,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:36,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:36,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:36,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:36,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... [2021-10-11 00:21:36,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:36,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:36,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:36,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:36,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-11 00:21:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-11 00:21:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-11 00:21:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:21:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:21:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:21:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-11 00:21:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-10-11 00:21:36,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:21:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:21:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-11 00:21:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:21:36,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-11 00:21:36,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:36,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:38,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:38,397 INFO L299 CfgBuilder]: Removed 107 assume(true) statements. [2021-10-11 00:21:38,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:38 BoogieIcfgContainer [2021-10-11 00:21:38,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:38,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:21:38,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:21:38,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:21:38,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:21:34" (1/3) ... [2021-10-11 00:21:38,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d12906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:38, skipping insertion in model container [2021-10-11 00:21:38,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:36" (2/3) ... [2021-10-11 00:21:38,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d12906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:21:38, skipping insertion in model container [2021-10-11 00:21:38,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:38" (3/3) ... [2021-10-11 00:21:38,406 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-10-11 00:21:38,419 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:21:38,423 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:21:38,434 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:21:38,459 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:21:38,459 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:21:38,459 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:21:38,459 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:38,459 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:38,460 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:21:38,460 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:38,460 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:21:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2021-10-11 00:21:38,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 00:21:38,479 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:38,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:21:38,480 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:38,485 INFO L82 PathProgramCache]: Analyzing trace with hash -653166678, now seen corresponding path program 1 times [2021-10-11 00:21:38,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:38,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100768338] [2021-10-11 00:21:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:38,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:38,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:38,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:21:38,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100768338] [2021-10-11 00:21:38,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:38,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:21:38,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55659552] [2021-10-11 00:21:38,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 00:21:38,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:21:38,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:21:38,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:38,948 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 3 states. [2021-10-11 00:21:39,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:39,037 INFO L93 Difference]: Finished difference Result 235 states and 307 transitions. [2021-10-11 00:21:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:21:39,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 00:21:39,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:39,061 INFO L225 Difference]: With dead ends: 235 [2021-10-11 00:21:39,061 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 00:21:39,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:21:39,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 00:21:39,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-11 00:21:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:21:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 186 transitions. [2021-10-11 00:21:39,116 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 186 transitions. Word has length 9 [2021-10-11 00:21:39,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:39,117 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 186 transitions. [2021-10-11 00:21:39,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 00:21:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 186 transitions. [2021-10-11 00:21:39,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 00:21:39,120 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:39,120 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] [2021-10-11 00:21:39,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:21:39,341 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:39,342 INFO L82 PathProgramCache]: Analyzing trace with hash 950528437, now seen corresponding path program 1 times [2021-10-11 00:21:39,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:39,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866821357] [2021-10-11 00:21:39,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:39,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:39,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:39,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:21:39,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:21:39,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866821357] [2021-10-11 00:21:39,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:21:39,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:21:39,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661483493] [2021-10-11 00:21:39,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:21:39,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:21:39,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:21:39,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:21:39,860 INFO L87 Difference]: Start difference. First operand 148 states and 186 transitions. Second operand 4 states. [2021-10-11 00:21:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:21:39,937 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2021-10-11 00:21:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:21:39,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-10-11 00:21:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:21:39,942 INFO L225 Difference]: With dead ends: 290 [2021-10-11 00:21:39,942 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 00:21:39,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:21:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 00:21:39,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-11 00:21:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-10-11 00:21:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2021-10-11 00:21:39,980 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 40 [2021-10-11 00:21:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:21:39,980 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2021-10-11 00:21:39,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:21:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2021-10-11 00:21:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-11 00:21:39,983 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:21:39,983 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] [2021-10-11 00:21:40,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:21:40,198 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:21:40,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:40,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1298860141, now seen corresponding path program 1 times [2021-10-11 00:21:40,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:21:40,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227758243] [2021-10-11 00:21:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d8c3692-64bd-4dc5-b71e-bcd10da0536a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:21:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:41,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:42,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:42,665 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-11 00:21:42,666 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:21:42,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:21:43,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:21:43 BoogieIcfgContainer [2021-10-11 00:21:43,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:21:43,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:43,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:43,095 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:43,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:38" (3/4) ... [2021-10-11 00:21:43,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:43,101 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:43,104 INFO L168 Benchmark]: Toolchain (without parser) took 8613.04 ms. Allocated memory was 67.1 MB in the beginning and 182.5 MB in the end (delta: 115.3 MB). Free memory was 40.6 MB in the beginning and 109.1 MB in the end (delta: -68.5 MB). Peak memory consumption was 46.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,105 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:43,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1810.50 ms. Allocated memory was 67.1 MB in the beginning and 107.0 MB in the end (delta: 39.8 MB). Free memory was 40.4 MB in the beginning and 47.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 195.49 ms. Allocated memory is still 107.0 MB. Free memory was 47.5 MB in the beginning and 69.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,110 INFO L168 Benchmark]: Boogie Preprocessor took 119.63 ms. Allocated memory is still 107.0 MB. Free memory was 69.6 MB in the beginning and 65.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,112 INFO L168 Benchmark]: RCFGBuilder took 1778.54 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 65.4 MB in the beginning and 98.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,118 INFO L168 Benchmark]: TraceAbstraction took 4693.40 ms. Allocated memory was 146.8 MB in the beginning and 182.5 MB in the end (delta: 35.7 MB). Free memory was 97.9 MB in the beginning and 110.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 58.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:43,119 INFO L168 Benchmark]: Witness Printer took 7.02 ms. Allocated memory is still 182.5 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:43,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 67.1 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1810.50 ms. Allocated memory was 67.1 MB in the beginning and 107.0 MB in the end (delta: 39.8 MB). Free memory was 40.4 MB in the beginning and 47.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 195.49 ms. Allocated memory is still 107.0 MB. Free memory was 47.5 MB in the beginning and 69.6 MB in the end (delta: -22.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 119.63 ms. Allocated memory is still 107.0 MB. Free memory was 69.6 MB in the beginning and 65.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1778.54 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 65.4 MB in the beginning and 98.9 MB in the end (delta: -33.5 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4693.40 ms. Allocated memory was 146.8 MB in the beginning and 182.5 MB in the end (delta: 35.7 MB). Free memory was 97.9 MB in the beginning and 110.2 MB in the end (delta: -12.3 MB). Peak memory consumption was 58.5 MB. Max. memory is 16.1 GB. * Witness Printer took 7.02 ms. Allocated memory is still 182.5 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4185. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={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}] [L4295] reach_error() 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, 88 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 222 SDtfs, 98 SDslu, 288 SDs, 0 SdLazy, 13 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 1853 SizeOfPredicates, 3 NumberOfNonLiveVariables, 527 ConjunctsInSsa, 6 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...