./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:35,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:35,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:35,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:35,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:35,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:35,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:35,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:35,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:35,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:35,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:35,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:35,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:35,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:35,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:35,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:35,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:35,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:35,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:35,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:35,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:35,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:35,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:35,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:35,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:35,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:35,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:35,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:35,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:35,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:35,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:35,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:35,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:35,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:35,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:35,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:35,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:35,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:35,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:35,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:35,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:35,550 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:48:35,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:35,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:35,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:35,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:35,603 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:35,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:35,604 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:35,604 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:48:35,604 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:35,605 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:35,609 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:48:35,610 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:48:35,610 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:35,610 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:48:35,610 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:48:35,611 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:48:35,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:35,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:48:35,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:35,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:35,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:35,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:35,613 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:35,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:35,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:35,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:35,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:35,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:35,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:35,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:35,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:35,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:35,615 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:48:35,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:48:35,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:35,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:35,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:35,616 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb [2021-11-19 14:48:35,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:35,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:35,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:35,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:35,940 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:35,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-11-19 14:48:36,021 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/7721946e4/8cd64d84c06e4dbfb9860f4d918eeebf/FLAGbec5f993a [2021-11-19 14:48:36,748 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:36,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-11-19 14:48:36,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/7721946e4/8cd64d84c06e4dbfb9860f4d918eeebf/FLAGbec5f993a [2021-11-19 14:48:36,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/7721946e4/8cd64d84c06e4dbfb9860f4d918eeebf [2021-11-19 14:48:36,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:48:36,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:48:36,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:36,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:48:36,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:48:36,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:36" (1/1) ... [2021-11-19 14:48:36,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f909d98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:36, skipping insertion in model container [2021-11-19 14:48:36,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:36" (1/1) ... [2021-11-19 14:48:36,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:48:36,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:38,101 WARN L230 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_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-11-19 14:48:38,142 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:38,159 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:48:38,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@365d4081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:38, skipping insertion in model container [2021-11-19 14:48:38,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:38,161 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:48:38,163 INFO L158 Benchmark]: Toolchain (without parser) took 1299.63ms. Allocated memory is still 138.4MB. Free memory was 106.6MB in the beginning and 81.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-19 14:48:38,165 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:48:38,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1297.26ms. Allocated memory is still 138.4MB. Free memory was 106.6MB in the beginning and 81.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-19 14:48:38,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1297.26ms. Allocated memory is still 138.4MB. Free memory was 106.6MB in the beginning and 81.3MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3642]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:40,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:40,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:40,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:40,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:40,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:40,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:40,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:40,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:40,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:40,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:40,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:40,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:40,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:40,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:40,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:40,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:40,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:40,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:40,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:40,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:40,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:40,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:40,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:40,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:40,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:40,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:40,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:40,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:40,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:40,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:40,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:40,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:40,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:40,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:40,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:40,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:40,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:40,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:40,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:40,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:40,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:48:40,658 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:40,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:40,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:40,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:40,660 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:40,660 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:40,661 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:40,661 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:40,661 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:40,661 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:40,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:40,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:40,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:40,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:40,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:40,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:40,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:48:40,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:48:40,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:40,664 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:40,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:40,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:40,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:48:40,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:40,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:40,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:40,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:40,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:40,667 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:48:40,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:48:40,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:40,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:40,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:40,668 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_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6fe8c59d377aa736bd14f3fafaa24b496bb4607101882bb7ce5966b11428bcb [2021-11-19 14:48:41,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:41,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:41,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:41,094 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:41,095 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:41,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-11-19 14:48:41,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/f0de91128/dc4bd6e2a0a745489d24eb14b8995a71/FLAGcd647d857 [2021-11-19 14:48:42,001 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:42,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-11-19 14:48:42,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/f0de91128/dc4bd6e2a0a745489d24eb14b8995a71/FLAGcd647d857 [2021-11-19 14:48:42,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/data/f0de91128/dc4bd6e2a0a745489d24eb14b8995a71 [2021-11-19 14:48:42,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:48:42,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:48:42,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:42,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:48:42,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:48:42,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:42" (1/1) ... [2021-11-19 14:48:42,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f211a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:42, skipping insertion in model container [2021-11-19 14:48:42,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:42" (1/1) ... [2021-11-19 14:48:42,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:48:42,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:43,474 WARN L230 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_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-11-19 14:48:43,537 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:43,567 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:48:43,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:43,803 WARN L230 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_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-11-19 14:48:43,826 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:43,840 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:48:44,128 WARN L230 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_78e06453-00ea-458e-a0df-8e9a074babf8/sv-benchmarks/c/ldv-commit-tester/m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i[122264,122277] [2021-11-19 14:48:44,138 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:44,197 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:48:44,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44 WrapperNode [2021-11-19 14:48:44,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:44,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:48:44,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:48:44,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:48:44,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,346 INFO L137 Inliner]: procedures = 150, calls = 514, calls flagged for inlining = 91, calls inlined = 29, statements flattened = 454 [2021-11-19 14:48:44,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:48:44,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:48:44,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:48:44,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:48:44,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:48:44,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:48:44,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:48:44,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:48:44,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (1/1) ... [2021-11-19 14:48:44,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:44,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:48:44,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:48:44,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:48:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:48:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:48:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2021-11-19 14:48:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2021-11-19 14:48:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:48:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-11-19 14:48:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2021-11-19 14:48:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:48:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:48:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 14:48:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 14:48:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:48:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:48:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:48:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:48:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2021-11-19 14:48:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2021-11-19 14:48:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:48:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:48:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 14:48:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 14:48:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:48:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:48:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:48:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:48:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-19 14:48:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-19 14:48:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:48:44,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:48:44,533 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:48:44,534 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:48:44,844 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:48:44,846 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:48:45,982 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:48:45,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:48:45,989 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:48:45,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:45 BoogieIcfgContainer [2021-11-19 14:48:45,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:48:45,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:48:45,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:48:45,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:48:45,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:48:42" (1/3) ... [2021-11-19 14:48:45,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9cd562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:45, skipping insertion in model container [2021-11-19 14:48:45,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:44" (2/3) ... [2021-11-19 14:48:45,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9cd562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:48:45, skipping insertion in model container [2021-11-19 14:48:45,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:45" (3/3) ... [2021-11-19 14:48:45,999 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-block-virtio_blk-ko--101_1a--39a1d13-1.i [2021-11-19 14:48:46,004 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:48:46,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:48:46,055 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:48:46,062 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:48:46,063 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:48:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 101 states have internal predecessors, (123), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-19 14:48:46,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 14:48:46,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:46,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:46,090 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:46,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:46,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1549604235, now seen corresponding path program 1 times [2021-11-19 14:48:46,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:46,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993455896] [2021-11-19 14:48:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:46,110 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:46,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:46,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:46,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:48:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:46,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:48:46,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:46,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:48:46,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:48:46,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:46,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993455896] [2021-11-19 14:48:46,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993455896] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:46,514 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:46,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-19 14:48:46,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780628570] [2021-11-19 14:48:46,517 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:46,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:48:46,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:48:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:46,550 INFO L87 Difference]: Start difference. First operand has 129 states, 98 states have (on average 1.2551020408163265) internal successors, (123), 101 states have internal predecessors, (123), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:48:46,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:46,676 INFO L93 Difference]: Finished difference Result 346 states and 438 transitions. [2021-11-19 14:48:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:48:46,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2021-11-19 14:48:46,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:46,695 INFO L225 Difference]: With dead ends: 346 [2021-11-19 14:48:46,697 INFO L226 Difference]: Without dead ends: 216 [2021-11-19 14:48:46,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:48:46,714 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 137 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:46,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 303 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:48:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-19 14:48:46,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-19 14:48:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 165 states have (on average 1.2181818181818183) internal successors, (201), 166 states have internal predecessors, (201), 33 states have call successors, (33), 18 states have call predecessors, (33), 17 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 14:48:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 265 transitions. [2021-11-19 14:48:46,786 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 265 transitions. Word has length 15 [2021-11-19 14:48:46,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:46,786 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 265 transitions. [2021-11-19 14:48:46,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:48:46,787 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 265 transitions. [2021-11-19 14:48:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 14:48:46,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:46,794 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:46,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 14:48:47,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:47,009 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:47,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1763310802, now seen corresponding path program 1 times [2021-11-19 14:48:47,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:47,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928134129] [2021-11-19 14:48:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:47,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:47,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:47,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:47,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:48:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:48:47,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:48:47,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:48:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-19 14:48:47,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:48:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-19 14:48:47,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:48:47,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928134129] [2021-11-19 14:48:47,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928134129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:48:47,975 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:48:47,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:48:47,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279116068] [2021-11-19 14:48:47,981 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:48:47,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:48:47,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:48:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:48:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:48:47,986 INFO L87 Difference]: Start difference. First operand 216 states and 265 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:48:48,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:48:48,082 INFO L93 Difference]: Finished difference Result 424 states and 520 transitions. [2021-11-19 14:48:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:48:48,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2021-11-19 14:48:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:48:48,087 INFO L225 Difference]: With dead ends: 424 [2021-11-19 14:48:48,089 INFO L226 Difference]: Without dead ends: 216 [2021-11-19 14:48:48,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:48:48,095 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 2 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:48:48,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 593 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:48:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-19 14:48:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-19 14:48:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 165 states have (on average 1.2121212121212122) internal successors, (200), 166 states have internal predecessors, (200), 33 states have call successors, (33), 18 states have call predecessors, (33), 17 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 14:48:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 264 transitions. [2021-11-19 14:48:48,151 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 264 transitions. Word has length 78 [2021-11-19 14:48:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:48:48,152 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 264 transitions. [2021-11-19 14:48:48,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-19 14:48:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 264 transitions. [2021-11-19 14:48:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 14:48:48,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:48:48,159 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:48:48,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:48,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:48,380 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:48:48,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:48:48,381 INFO L85 PathProgramCache]: Analyzing trace with hash -251868651, now seen corresponding path program 1 times [2021-11-19 14:48:48,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:48:48,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746429363] [2021-11-19 14:48:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:48:48,383 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:48:48,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:48:48,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:48:48,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:48:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:48:49,894 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:48:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:48:51,624 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-19 14:48:51,625 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:48:51,626 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:48:51,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:48:51,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:48:51,854 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 14:48:51,857 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:48:52,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:48:52 BoogieIcfgContainer [2021-11-19 14:48:52,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:48:52,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:48:52,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:48:52,004 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:48:52,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:48:45" (3/4) ... [2021-11-19 14:48:52,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:48:52,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:48:52,009 INFO L158 Benchmark]: Toolchain (without parser) took 9901.51ms. Allocated memory was 67.1MB in the beginning and 211.8MB in the end (delta: 144.7MB). Free memory was 41.2MB in the beginning and 143.0MB in the end (delta: -101.8MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,009 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:48:52,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2088.68ms. Allocated memory was 67.1MB in the beginning and 144.7MB in the end (delta: 77.6MB). Free memory was 41.0MB in the beginning and 84.8MB in the end (delta: -43.9MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.48ms. Allocated memory is still 144.7MB. Free memory was 84.8MB in the beginning and 79.9MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,011 INFO L158 Benchmark]: Boogie Preprocessor took 95.36ms. Allocated memory is still 144.7MB. Free memory was 79.9MB in the beginning and 75.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,011 INFO L158 Benchmark]: RCFGBuilder took 1547.67ms. Allocated memory is still 144.7MB. Free memory was 75.0MB in the beginning and 70.9MB in the end (delta: 4.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,012 INFO L158 Benchmark]: TraceAbstraction took 6010.49ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 70.1MB in the beginning and 144.0MB in the end (delta: -74.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,012 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 211.8MB. Free memory was 144.0MB in the beginning and 143.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:48:52,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2088.68ms. Allocated memory was 67.1MB in the beginning and 144.7MB in the end (delta: 77.6MB). Free memory was 41.0MB in the beginning and 84.8MB in the end (delta: -43.9MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.48ms. Allocated memory is still 144.7MB. Free memory was 84.8MB in the beginning and 79.9MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.36ms. Allocated memory is still 144.7MB. Free memory was 79.9MB in the beginning and 75.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1547.67ms. Allocated memory is still 144.7MB. Free memory was 75.0MB in the beginning and 70.9MB in the end (delta: 4.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6010.49ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 70.1MB in the beginning and 144.0MB in the end (delta: -74.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 211.8MB. Free memory was 144.0MB in the beginning and 143.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4295]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 4185. Possible FailurePath: [L3648] static int major ; [L3649] static int index ; [L3974-L3975] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4173-L4174] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4175-L4178] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4179-L4180] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4202] struct virtio_device_id const __mod_virtio_device_table ; [L4207] int LDV_IN_INTERRUPT ; [L4348] int ldv_blk_rq = 0; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=0, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [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 [L4220] FCALL ldv_initialize() [L4221] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4222] CALL, EXPR init() [L4183] int tmp ; [L4185] CALL, EXPR register_blkdev(0U, "virtblk") [L4531] return __VERIFIER_nondet_int(); [L4185] RET, EXPR register_blkdev(0U, "virtblk") [L4185] major = register_blkdev(0U, "virtblk") [L4186] COND FALSE !(major < 0) [L4190] CALL, EXPR register_virtio_driver(& virtio_blk) [L4535] return __VERIFIER_nondet_int(); [L4190] RET, EXPR register_virtio_driver(& virtio_blk) [L4190] tmp = register_virtio_driver(& virtio_blk) [L4191] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4222] RET, EXPR init() [L4222] tmp = init() [L4223] COND FALSE !(tmp != 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, virtblk_fops={15:0}, virtio_blk={25:0}] [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={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___1=2147483648, virtblk_fops={15:0}, virtio_blk={25:0}] [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={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=2147483648, virtblk_fops={15:0}, virtio_blk={25:0}] [L4232] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=2147483648, virtblk_fops={15:0}, virtio_blk={25:0}] [L4233] CALL virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [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 [L3926] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [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 [L3889] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4427] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=112, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=112, virtblk_fops={15:0}, virtio_blk={25:0}] [L4427] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [\old(arg2)=20, \old(arg3)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={13:0}, arg1={13:0}, arg2=20, arg3=208, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct bio))={0:0}, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4427] return ldv_malloc(sizeof(struct bio)); [L3889] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3889] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3890] CALL, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4307] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, tmp=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L3890] RET, EXPR IS_ERR((void const *)bio) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={13:0}, id_str={13:0}, id_table={-9223372036854775795:0}, index=0, IS_ERR((void const *)bio)=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, vblk={144115188075855872:34359738368}, virtblk_fops={15:0}, virtio_blk={25:0}] [L3890] tmp___0 = IS_ERR((void const *)bio) [L3891] COND FALSE !(tmp___0 != 0L) [L3896] EXPR vblk->disk [L3896] EXPR (vblk->disk)->queue [L3896] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4283] ldv_func_ret_type___3 ldv_func_res ; [L4284] struct request *tmp ; [L4286] CALL, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4443] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L3456] COND FALSE !(__VERIFIER_nondet_int()) [L3461] return ((void *)0); VAL [\old(size)=322, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, size=322, virtblk_fops={15:0}, virtio_blk={25:0}] [L4443] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [\old(arg2)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, arg0={0:0}, arg0={0:0}, arg1={0:0}, arg1={0:0}, arg2=208, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct request))={0:0}, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4443] return ldv_malloc(sizeof(struct request)); [L4286] RET, EXPR blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4286] tmp = blk_make_request(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4287] ldv_func_res = tmp [L4288] CALL ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4351] long tmp ; VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4353] COND TRUE ldv_blk_rq == 0 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=0, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4357] COND TRUE (mask == 16U || mask == 208U) || mask == 16U [L4358] ldv_blk_rq = 1 VAL [\old(mask)=208, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mask=208, res={0:0}, res={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4288] RET ldv_get_blk_rq(ldv_func_res, ldv_func_arg3) [L4289] return (ldv_func_res); VAL [\old(ldv_func_arg3)=208, \result={0:0}, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_func_arg2={0:0}, ldv_func_arg2={0:0}, ldv_func_arg3=208, ldv_func_res={0:0}, LDV_IN_INTERRUPT=1, major=0, tmp={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L3896] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3896] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3897] CALL, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4274] long tmp ; VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] CALL, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4307] return ((unsigned long )ptr > 2012UL); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] RET, EXPR ldv_is_err(ptr) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, ldv_is_err(ptr)=0, major=0, ptr={0:0}, ptr={0:0}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4276] tmp = ldv_is_err(ptr) [L4277] return (tmp); VAL [\result=0, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, ptr={0:0}, ptr={0:0}, tmp=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L3897] RET, EXPR IS_ERR((void const *)req) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={13:0}, id_str={13:0}, id_table={-9223372036854775795:0}, index=0, IS_ERR((void const *)req)=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, vblk={144115188075855872:34359738368}, virtblk_fops={15:0}, virtio_blk={25:0}] [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 [L3905] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4437] return __VERIFIER_nondet_int(); [L3905] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3905] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3906] return (tmp___3); VAL [\result=-2147483648, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bio={0:0}, disk={0:0}, disk={0:0}, features={14:0}, id_str={13:0}, id_str={13:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, req={0:0}, tmp___0=0, tmp___2=0, tmp___3=2147483648, vblk={144115188075855872:34359738368}, virtblk_fops={15:0}, virtio_blk={25:0}] [L3926] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3926] err = virtblk_get_id(disk, (char *)(& id_str)) [L3927] COND FALSE !(err == 0) VAL [\old(cmd)=1447184708, \old(data)=37, \old(mode)=11, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={0:0}, bdev={0:0}, cmd=1447184708, data=37, disk={0:0}, err=2147483648, features={14:0}, id_str={13:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mode=11, usr_data={0:37}, vblk={144115188075855872:34359738368}, virtblk_fops={15:0}, virtio_blk={25:0}] [L3935] return (err); [L3935] return (err); VAL [\old(cmd)=1447184708, \old(data)=37, \old(mode)=11, \result=-2147483648, __mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, bdev={0:0}, bdev={0:0}, cmd=1447184708, data=37, disk={0:0}, err=2147483648, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, mode=11, usr_data={0:37}, vblk={144115188075855872:34359738368}, virtblk_fops={15:0}, virtio_blk={25:0}] [L4233] RET virtblk_ioctl(var_group1, var_virtblk_ioctl_5_p1, var_virtblk_ioctl_5_p2, var_virtblk_ioctl_5_p3) [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={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={0:0}, var_virtblk_ioctl_5_p1=11, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=37, virtblk_fops={15:0}, virtio_blk={25:0}] [L4249] FCALL ldv_handler_precall() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, tmp=0, tmp___0=0, tmp___1=0, var_group1={0:0}, var_virtblk_ioctl_5_p1=11, var_virtblk_ioctl_5_p2=1447184708, var_virtblk_ioctl_5_p3=37, virtblk_fops={15:0}, virtio_blk={25:0}] [L4250] CALL fini() [L4197] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4198] FCALL unregister_virtio_driver(& virtio_blk) [L4250] RET fini() [L4252] CALL ldv_check_final_state() [L4385] COND FALSE !(ldv_blk_rq == 0) VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4387] CALL ldv_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] [L4295] reach_error() VAL [__mod_virtio_device_table=0, __mod_virtio_device_table=0, __this_module={0:0}, features={14:0}, id_table={-9223372036854775795:0}, index=0, ldv_blk_rq=1, LDV_IN_INTERRUPT=1, major=0, virtblk_fops={15:0}, virtio_blk={25:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 896 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 567 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 329 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=1, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 4 NumberOfNonLiveVariables, 631 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 40/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:48:52,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78e06453-00ea-458e-a0df-8e9a074babf8/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample