./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:53,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:53,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-23 21:30:53,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:53,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:53,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:53,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:53,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:53,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:53,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:53,251 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:53,252 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:53,253 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:53,253 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:53,254 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:53,255 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:53,255 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:53,256 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:53,257 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:53,257 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:53,258 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:53,259 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:53,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:30:53,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:30:53,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:53,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:53,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:53,264 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:30:53,264 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:30:53,265 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:30:53,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:53,266 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:53,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:30:53,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:53,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:53,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:53,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:53,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:53,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:53,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:53,271 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:53,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:53,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:53,272 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:53,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:53,272 INFO L153 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_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2023-11-23 21:30:53,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:53,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:53,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:53,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:53,602 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:53,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-23 21:30:56,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:57,606 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:57,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-23 21:30:57,649 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/0b23d805f/7c4e0ad80b6a4b2fa25e61af4c7169f9/FLAG21da790d7 [2023-11-23 21:30:57,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/0b23d805f/7c4e0ad80b6a4b2fa25e61af4c7169f9 [2023-11-23 21:30:57,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:57,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:57,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:57,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:57,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:57,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e142aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:57, skipping insertion in model container [2023-11-23 21:30:57,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:57" (1/1) ... [2023-11-23 21:30:57,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:59,785 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-23 21:30:59,801 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-23 21:30:59,883 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-23 21:30:59,894 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-23 21:31:01,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:01,445 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-23 21:31:01,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e6e23b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:01, skipping insertion in model container [2023-11-23 21:31:01,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:01,446 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:31:01,448 INFO L158 Benchmark]: Toolchain (without parser) took 3777.40ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 99.2MB in the end (delta: 9.1MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2023-11-23 21:31:01,449 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 109.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:31:01,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3774.62ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 99.2MB in the end (delta: 8.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2023-11-23 21:31:01,451 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 109.1MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3774.62ms. Allocated memory is still 165.7MB. Free memory was 107.7MB in the beginning and 99.2MB in the end (delta: 8.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5175]: Unsupported Syntax Found a cast between two array/pointer types of different sizes 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:31:04,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:31:04,351 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-23 21:31:04,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:31:04,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:31:04,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:31:04,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:31:04,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:31:04,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:31:04,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:31:04,417 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:31:04,418 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:31:04,418 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:31:04,420 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:31:04,421 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:31:04,421 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:31:04,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:31:04,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:31:04,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:31:04,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:31:04,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:31:04,426 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:31:04,427 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:31:04,427 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:31:04,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:31:04,428 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:31:04,429 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:31:04,429 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:31:04,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:31:04,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:31:04,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:31:04,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:31:04,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:31:04,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:31:04,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:04,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:31:04,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:31:04,435 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:31:04,436 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:31:04,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:31:04,436 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:31:04,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:31:04,437 INFO L153 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_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2023-11-23 21:31:04,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:31:04,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:31:04,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:31:04,935 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:31:04,936 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:31:04,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-23 21:31:08,156 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:31:08,912 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:31:08,913 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-23 21:31:08,986 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/2dc25f93e/814da7705c3a495ea695437942c6a011/FLAG6ef835ef0 [2023-11-23 21:31:09,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/data/2dc25f93e/814da7705c3a495ea695437942c6a011 [2023-11-23 21:31:09,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:31:09,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:31:09,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:09,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:31:09,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:31:09,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:09" (1/1) ... [2023-11-23 21:31:09,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ce4971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:09, skipping insertion in model container [2023-11-23 21:31:09,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:31:09" (1/1) ... [2023-11-23 21:31:09,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:12,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:12,653 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 21:31:12,744 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:31:13,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:13,285 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:31:13,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/virtio_config.h"), "i" (99), "i" (12UL)); [4816-4817] [2023-11-23 21:31:13,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/virtio_config.h"), "i" (178), "i" (12UL)); [4854-4855] [2023-11-23 21:31:13,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (172), "i" (12UL)); [5304-5305] [2023-11-23 21:31:13,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (198), "i" (12UL)); [5360-5361] [2023-11-23 21:31:13,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (285), "i" (12UL)); [5562-5563] [2023-11-23 21:31:13,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (287), "i" (12UL)); [5612-5613] [2023-11-23 21:31:13,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (289), "i" (12UL)); [5662-5663] [2023-11-23 21:31:13,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (348), "i" (12UL)); [5800-5801] [2023-11-23 21:31:13,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (391), "i" (12UL)); [5911-5912] [2023-11-23 21:31:13,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (478), "i" (12UL)); [6126-6127] [2023-11-23 21:31:13,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (512), "i" (12UL)); [6214-6215] [2023-11-23 21:31:13,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (533), "i" (12UL)); [6269-6270] [2023-11-23 21:31:13,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (591), "i" (12UL)); [6454-6455] [2023-11-23 21:31:13,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (669), "i" (12UL)); [6605-6606] [2023-11-23 21:31:13,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (691), "i" (12UL)); [6671-6672] [2023-11-23 21:31:13,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (700), "i" (12UL)); [6744-6745] [2023-11-23 21:31:13,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (709), "i" (12UL)); [6818-6819] [2023-11-23 21:31:13,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (716), "i" (12UL)); [6888-6889] [2023-11-23 21:31:13,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (722), "i" (12UL)); [6958-6959] [2023-11-23 21:31:13,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/block/virtio_blk.c"), "i" (728), "i" (12UL)); [7028-7029] [2023-11-23 21:31:13,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:31:14,055 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:31:14,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14 WrapperNode [2023-11-23 21:31:14,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:31:14,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:14,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:31:14,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:31:14,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,183 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,378 INFO L138 Inliner]: procedures = 569, calls = 1545, calls flagged for inlining = 250, calls inlined = 160, statements flattened = 3168 [2023-11-23 21:31:14,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:31:14,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:31:14,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:31:14,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:31:14,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,577 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:31:14,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:31:14,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:31:14,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:31:14,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (1/1) ... [2023-11-23 21:31:14,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:31:14,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:31:14,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:31:14,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:31:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-11-23 21:31:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-11-23 21:31:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-23 21:31:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-23 21:31:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:31:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:31:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-23 21:31:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-23 21:31:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2023-11-23 21:31:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2023-11-23 21:31:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:31:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:31:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-23 21:31:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-23 21:31:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2023-11-23 21:31:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2023-11-23 21:31:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-23 21:31:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-23 21:31:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2023-11-23 21:31:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2023-11-23 21:31:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:31:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:31:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:31:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:31:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-23 21:31:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-23 21:31:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:31:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 21:31:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:31:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 21:31:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2023-11-23 21:31:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2023-11-23 21:31:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-23 21:31:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:31:14,776 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:31:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-23 21:31:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-23 21:31:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2023-11-23 21:31:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure string_get_size [2023-11-23 21:31:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2023-11-23 21:31:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2023-11-23 21:31:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2023-11-23 21:31:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2023-11-23 21:31:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2023-11-23 21:31:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2023-11-23 21:31:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-23 21:31:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-23 21:31:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-23 21:31:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-23 21:31:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:31:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:31:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2023-11-23 21:31:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_flush [2023-11-23 21:31:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-23 21:31:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-23 21:31:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2023-11-23 21:31:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_simple_remove [2023-11-23 21:31:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-23 21:31:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-23 21:31:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-23 21:31:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-23 21:31:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-23 21:31:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-23 21:31:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:31:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:31:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-23 21:31:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-23 21:31:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-23 21:31:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-23 21:31:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-23 21:31:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-23 21:31:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2023-11-23 21:31:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2023-11-23 21:31:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:31:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2023-11-23 21:31:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2023-11-23 21:31:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:31:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:31:14,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:31:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:31:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2023-11-23 21:31:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2023-11-23 21:31:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-23 21:31:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-23 21:31:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:31:14,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:31:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-23 21:31:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2023-11-23 21:31:14,789 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2023-11-23 21:31:14,789 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2023-11-23 21:31:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2023-11-23 21:31:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2023-11-23 21:31:14,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2023-11-23 21:31:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-23 21:31:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-23 21:31:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-23 21:31:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:31:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:31:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:31:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:31:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 21:31:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 21:31:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:31:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:31:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:31:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2023-11-23 21:31:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2023-11-23 21:31:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:31:14,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:31:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2023-11-23 21:31:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2023-11-23 21:31:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 21:31:14,795 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 21:31:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-23 21:31:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-23 21:31:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-23 21:31:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-23 21:31:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-23 21:31:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-23 21:31:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2023-11-23 21:31:14,798 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2023-11-23 21:31:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-23 21:31:14,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-23 21:31:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2023-11-23 21:31:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2023-11-23 21:31:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-23 21:31:14,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-23 21:31:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2023-11-23 21:31:14,805 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2023-11-23 21:31:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:31:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-23 21:31:14,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-23 21:31:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2023-11-23 21:31:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2023-11-23 21:31:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2023-11-23 21:31:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2023-11-23 21:31:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:31:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-23 21:31:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 21:31:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 21:31:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:31:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:31:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2023-11-23 21:31:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2023-11-23 21:31:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-23 21:31:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-23 21:31:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:31:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:31:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2023-11-23 21:31:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2023-11-23 21:31:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2023-11-23 21:31:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2023-11-23 21:31:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-23 21:31:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-23 21:31:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-23 21:31:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-23 21:31:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-11-23 21:31:14,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-11-23 21:31:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-23 21:31:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-23 21:31:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:31:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:31:14,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-23 21:31:14,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:31:14,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:31:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2023-11-23 21:31:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2023-11-23 21:31:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-23 21:31:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-23 21:31:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:31:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:31:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2023-11-23 21:31:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2023-11-23 21:31:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:31:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:31:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-23 21:31:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-23 21:31:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 21:31:14,820 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 21:31:14,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2023-11-23 21:31:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2023-11-23 21:31:14,821 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2023-11-23 21:31:14,821 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2023-11-23 21:31:15,539 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:31:15,544 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:31:15,876 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:31:28,690 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:31:29,160 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:31:29,160 INFO L309 CfgBuilder]: Removed 15 assume(true) statements. [2023-11-23 21:31:29,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:29 BoogieIcfgContainer [2023-11-23 21:31:29,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:31:29,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:31:29,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:31:29,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:31:29,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:31:09" (1/3) ... [2023-11-23 21:31:29,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd500bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:29, skipping insertion in model container [2023-11-23 21:31:29,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:31:14" (2/3) ... [2023-11-23 21:31:29,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd500bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:31:29, skipping insertion in model container [2023-11-23 21:31:29,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:31:29" (3/3) ... [2023-11-23 21:31:29,172 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-23 21:31:29,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:31:29,194 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 476 error locations. [2023-11-23 21:31:29,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:31:29,297 INFO L357 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3521f5ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:31:29,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 476 error locations. [2023-11-23 21:31:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 1682 states, 822 states have (on average 1.8309002433090025) internal successors, (1505), 1339 states have internal predecessors, (1505), 314 states have call successors, (314), 81 states have call predecessors, (314), 80 states have return successors, (311), 309 states have call predecessors, (311), 311 states have call successors, (311) [2023-11-23 21:31:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-23 21:31:29,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:29,328 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-11-23 21:31:29,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, virtblk_update_cache_modeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, virtblk_update_cache_modeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 473 more)] === [2023-11-23 21:31:29,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash -39919169, now seen corresponding path program 1 times [2023-11-23 21:31:29,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436000629] [2023-11-23 21:31:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:29,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:29,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:31:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:30,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:31:30,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 21:31:30,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:30,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:30,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436000629] [2023-11-23 21:31:30,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436000629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:30,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:30,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:31:30,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795767868] [2023-11-23 21:31:30,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:30,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:31:30,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:30,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:31:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:30,851 INFO L87 Difference]: Start difference. First operand has 1682 states, 822 states have (on average 1.8309002433090025) internal successors, (1505), 1339 states have internal predecessors, (1505), 314 states have call successors, (314), 81 states have call predecessors, (314), 80 states have return successors, (311), 309 states have call predecessors, (311), 311 states have call successors, (311) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:31:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:37,628 INFO L93 Difference]: Finished difference Result 1976 states and 2403 transitions. [2023-11-23 21:31:37,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:31:37,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2023-11-23 21:31:37,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:37,673 INFO L225 Difference]: With dead ends: 1976 [2023-11-23 21:31:37,674 INFO L226 Difference]: Without dead ends: 1959 [2023-11-23 21:31:37,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:31:37,680 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 569 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:37,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 6481 Invalid, 875 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 874 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-23 21:31:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2023-11-23 21:31:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1742. [2023-11-23 21:31:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 873 states have (on average 1.7869415807560138) internal successors, (1560), 1367 states have internal predecessors, (1560), 328 states have call successors, (328), 103 states have call predecessors, (328), 102 states have return successors, (297), 291 states have call predecessors, (297), 294 states have call successors, (297) [2023-11-23 21:31:37,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2185 transitions. [2023-11-23 21:31:37,910 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2185 transitions. Word has length 46 [2023-11-23 21:31:37,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:37,911 INFO L495 AbstractCegarLoop]: Abstraction has 1742 states and 2185 transitions. [2023-11-23 21:31:37,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:31:37,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2185 transitions. [2023-11-23 21:31:37,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 21:31:37,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:37,924 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-23 21:31:37,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:38,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:38,140 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, virtblk_update_cache_modeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, virtblk_update_cache_modeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 473 more)] === [2023-11-23 21:31:38,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:38,141 INFO L85 PathProgramCache]: Analyzing trace with hash 448924315, now seen corresponding path program 1 times [2023-11-23 21:31:38,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:38,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425793491] [2023-11-23 21:31:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:38,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:38,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:38,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fbbd636-0b50-4b74-bcb4-cc72e4f2ad10/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:31:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:39,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:31:39,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 21:31:39,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:39,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:39,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425793491] [2023-11-23 21:31:39,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425793491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:39,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:39,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:31:39,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119676423] [2023-11-23 21:31:39,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:39,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:31:39,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:31:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:31:39,577 INFO L87 Difference]: Start difference. First operand 1742 states and 2185 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)