./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.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_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:29:31,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:29:31,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-12 02:29:31,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:29:31,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:29:31,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:29:31,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:29:31,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:29:31,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:29:31,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:29:31,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:29:31,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:29:31,668 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:29:31,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:29:31,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:29:31,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:29:31,671 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:29:31,672 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:29:31,672 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:29:31,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:29:31,673 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:29:31,674 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:29:31,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:29:31,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:29:31,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:29:31,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:29:31,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:31,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:29:31,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:29:31,679 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:29:31,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:29:31,680 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:29:31,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:29:31,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:29:31,681 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:29:31,682 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2023-11-12 02:29:31,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:29:32,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:29:32,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:29:32,014 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:29:32,015 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:29:32,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-12 02:29:35,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:29:35,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:29:35,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-12 02:29:35,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/15d2d06d5/8ba63365c9c6496e95aef8dd32f3c022/FLAG507f17e8c [2023-11-12 02:29:35,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/15d2d06d5/8ba63365c9c6496e95aef8dd32f3c022 [2023-11-12 02:29:35,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:29:35,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:29:35,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:35,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:29:35,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:29:35,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:35" (1/1) ... [2023-11-12 02:29:35,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de76fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:35, skipping insertion in model container [2023-11-12 02:29:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:35" (1/1) ... [2023-11-12 02:29:36,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:29:37,827 WARN L577 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-12 02:29:37,837 WARN L577 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-12 02:29:37,890 WARN L577 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-12 02:29:37,897 WARN L577 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-12 02:29:39,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:39,195 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) [2023-11-12 02:29:39,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cf42a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:39, skipping insertion in model container [2023-11-12 02:29:39,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:39,197 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:29:39,199 INFO L158 Benchmark]: Toolchain (without parser) took 3350.95ms. Allocated memory is still 172.0MB. Free memory was 112.3MB in the beginning and 110.9MB in the end (delta: 1.4MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-11-12 02:29:39,200 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:29:39,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3346.62ms. Allocated memory is still 172.0MB. Free memory was 112.3MB in the beginning and 110.9MB in the end (delta: 1.4MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2023-11-12 02:29:39,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 136.3MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3346.62ms. Allocated memory is still 172.0MB. Free memory was 112.3MB in the beginning and 110.9MB in the end (delta: 1.4MB). Peak memory consumption was 54.0MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.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_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:29:41,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:29:41,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-12 02:29:41,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:29:41,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:29:41,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:29:41,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:29:41,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:29:41,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:29:41,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:29:41,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:29:41,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:29:41,877 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:29:41,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:29:41,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:29:41,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:29:41,879 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:29:41,879 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:29:41,880 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:29:41,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:29:41,881 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:29:41,882 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:29:41,882 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:29:41,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:29:41,883 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:29:41,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:29:41,884 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:29:41,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:29:41,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:41,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:29:41,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:29:41,887 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:29:41,887 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:29:41,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:29:41,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:29:41,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:29:41,888 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:29:41,889 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:29:41,889 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2023-11-12 02:29:42,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:29:42,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:29:42,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:29:42,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:29:42,342 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:29:42,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-12 02:29:45,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:29:46,443 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:29:46,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-12 02:29:46,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/eae068839/32c38e5e5656400c931da1297a86df70/FLAGa371648bb [2023-11-12 02:29:46,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/data/eae068839/32c38e5e5656400c931da1297a86df70 [2023-11-12 02:29:46,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:29:46,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:29:46,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:46,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:29:46,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:29:46,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:46" (1/1) ... [2023-11-12 02:29:46,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54af11a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:46, skipping insertion in model container [2023-11-12 02:29:46,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:29:46" (1/1) ... [2023-11-12 02:29:46,826 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:29:50,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:50,121 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:29:50,214 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:29:50,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:50,586 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:29:50,787 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] [2023-11-12 02:29:50,802 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] [2023-11-12 02:29:50,900 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] [2023-11-12 02:29:50,903 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] [2023-11-12 02:29:50,969 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] [2023-11-12 02:29:50,970 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] [2023-11-12 02:29:50,973 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] [2023-11-12 02:29:51,011 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] [2023-11-12 02:29:51,015 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] [2023-11-12 02:29:51,025 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] [2023-11-12 02:29:51,032 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] [2023-11-12 02:29:51,034 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] [2023-11-12 02:29:51,040 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] [2023-11-12 02:29:51,053 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] [2023-11-12 02:29:51,055 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] [2023-11-12 02:29:51,056 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] [2023-11-12 02:29:51,058 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] [2023-11-12 02:29:51,060 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] [2023-11-12 02:29:51,061 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] [2023-11-12 02:29:51,062 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] [2023-11-12 02:29:51,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:29:51,505 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:29:51,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51 WrapperNode [2023-11-12 02:29:51,505 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:29:51,507 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:51,507 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:29:51,507 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:29:51,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:51,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:51,857 INFO L138 Inliner]: procedures = 569, calls = 1545, calls flagged for inlining = 250, calls inlined = 160, statements flattened = 3168 [2023-11-12 02:29:51,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:29:51,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:29:51,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:29:51,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:29:51,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:51,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:51,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:51,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:29:52,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:29:52,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:29:52,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:29:52,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (1/1) ... [2023-11-12 02:29:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:29:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:29:52,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:29:52,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:29:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-11-12 02:29:52,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-11-12 02:29:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2023-11-12 02:29:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2023-11-12 02:29:52,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:29:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:29:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-12 02:29:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2023-11-12 02:29:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_del_gendisk [2023-11-12 02:29:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_del_gendisk [2023-11-12 02:29:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 02:29:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 02:29:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2023-11-12 02:29:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2023-11-12 02:29:52,198 INFO L130 BoogieDeclarations]: Found specification of procedure init_vq [2023-11-12 02:29:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure init_vq [2023-11-12 02:29:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2023-11-12 02:29:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2023-11-12 02:29:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_config_changed [2023-11-12 02:29:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_config_changed [2023-11-12 02:29:52,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 02:29:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 02:29:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 02:29:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 02:29:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2023-11-12 02:29:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2023-11-12 02:29:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:29:52,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-12 02:29:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:29:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-12 02:29:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_get_cache_mode [2023-11-12 02:29:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_get_cache_mode [2023-11-12 02:29:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-12 02:29:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:29:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:29:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2023-11-12 02:29:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2023-11-12 02:29:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure string_get_size [2023-11-12 02:29:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure string_get_size [2023-11-12 02:29:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2023-11-12 02:29:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2023-11-12 02:29:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_update_cache_mode [2023-11-12 02:29:52,203 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_update_cache_mode [2023-11-12 02:29:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_blk_cleanup_queue [2023-11-12 02:29:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_blk_cleanup_queue [2023-11-12 02:29:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2023-11-12 02:29:52,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2023-11-12 02:29:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-12 02:29:52,205 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-12 02:29:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 02:29:52,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 02:29:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_flush [2023-11-12 02:29:52,207 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_flush [2023-11-12 02:29:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-12 02:29:52,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2023-11-12 02:29:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ida_simple_remove [2023-11-12 02:29:52,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_simple_remove [2023-11-12 02:29:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2023-11-12 02:29:52,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2023-11-12 02:29:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-12 02:29:52,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-12 02:29:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2023-11-12 02:29:52,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2023-11-12 02:29:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 02:29:52,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 02:29:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-12 02:29:52,210 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-12 02:29:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2023-11-12 02:29:52,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2023-11-12 02:29:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-12 02:29:52,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2023-11-12 02:29:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread8 [2023-11-12 02:29:52,211 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread8 [2023-11-12 02:29:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:29:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure revalidate_disk [2023-11-12 02:29:52,212 INFO L138 BoogieDeclarations]: Found implementation of procedure revalidate_disk [2023-11-12 02:29:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:29:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 02:29:52,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 02:29:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:29:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2023-11-12 02:29:52,213 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2023-11-12 02:29:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-12 02:29:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-12 02:29:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:29:52,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:29:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-12 02:29:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2023-11-12 02:29:52,214 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2023-11-12 02:29:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_cache_type_store [2023-11-12 02:29:52,214 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_cache_type_store [2023-11-12 02:29:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2023-11-12 02:29:52,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2023-11-12 02:29:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2023-11-12 02:29:52,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2023-11-12 02:29:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-12 02:29:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:29:52,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:29:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 02:29:52,216 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 02:29:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:29:52,217 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-12 02:29:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:29:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:29:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:29:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2023-11-12 02:29:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2023-11-12 02:29:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 02:29:52,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 02:29:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread32 [2023-11-12 02:29:52,220 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread32 [2023-11-12 02:29:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-12 02:29:52,220 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-12 02:29:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-12 02:29:52,220 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-12 02:29:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-12 02:29:52,221 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-12 02:29:52,221 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-12 02:29:52,221 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-12 02:29:52,222 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread16 [2023-11-12 02:29:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread16 [2023-11-12 02:29:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2023-11-12 02:29:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2023-11-12 02:29:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2023-11-12 02:29:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2023-11-12 02:29:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2023-11-12 02:29:52,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2023-11-12 02:29:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_cread64 [2023-11-12 02:29:52,228 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_cread64 [2023-11-12 02:29:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:29:52,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-12 02:29:52,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2023-11-12 02:29:52,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_block_request__double_get [2023-11-12 02:29:52,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_block_request__double_get [2023-11-12 02:29:52,232 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2023-11-12 02:29:52,232 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2023-11-12 02:29:52,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:29:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-12 02:29:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-12 02:29:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-12 02:29:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:29:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:29:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure virtio32_to_cpu [2023-11-12 02:29:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio32_to_cpu [2023-11-12 02:29:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-12 02:29:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2023-11-12 02:29:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 02:29:52,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 02:29:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_start_stopped_hw_queues [2023-11-12 02:29:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_start_stopped_hw_queues [2023-11-12 02:29:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2023-11-12 02:29:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2023-11-12 02:29:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-12 02:29:52,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2023-11-12 02:29:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2023-11-12 02:29:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2023-11-12 02:29:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-11-12 02:29:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2023-11-12 02:29:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-12 02:29:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2023-11-12 02:29:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:29:52,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-12 02:29:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-12 02:29:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:29:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:29:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2023-11-12 02:29:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_virtio_blk_vq [2023-11-12 02:29:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-12 02:29:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2023-11-12 02:29:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 02:29:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 02:29:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2023-11-12 02:29:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2023-11-12 02:29:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 02:29:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 02:29:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-12 02:29:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2023-11-12 02:29:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-12 02:29:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-12 02:29:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_put_disk [2023-11-12 02:29:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_put_disk [2023-11-12 02:29:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_device_ready [2023-11-12 02:29:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_device_ready [2023-11-12 02:29:52,944 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:29:52,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:29:53,241 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:30:06,293 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:06,312 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:06,312 INFO L302 CfgBuilder]: Removed 15 assume(true) statements. [2023-11-12 02:30:06,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:06 BoogieIcfgContainer [2023-11-12 02:30:06,318 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:06,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:06,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:06,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:06,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:29:46" (1/3) ... [2023-11-12 02:30:06,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a1598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:06, skipping insertion in model container [2023-11-12 02:30:06,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:29:51" (2/3) ... [2023-11-12 02:30:06,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a1598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:06, skipping insertion in model container [2023-11-12 02:30:06,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:06" (3/3) ... [2023-11-12 02:30:06,328 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-12 02:30:06,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:06,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 476 error locations. [2023-11-12 02:30:06,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:30:06,448 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=PETRI_NET, 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;@a249198, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:30:06,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 476 error locations. [2023-11-12 02:30:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 1960 states, 1100 states have (on average 1.6209090909090909) internal successors, (1783), 1617 states have internal predecessors, (1783), 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) [2023-11-12 02:30:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 02:30:06,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:06,475 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-12 02:30:06,476 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)] === [2023-11-12 02:30:06,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:06,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1017197984, now seen corresponding path program 1 times [2023-11-12 02:30:06,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:30:06,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342064267] [2023-11-12 02:30:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:06,499 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 [2023-11-12 02:30:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:30:06,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:30:06,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:07,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:30:07,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:30:07,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:30:07,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:30:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342064267] [2023-11-12 02:30:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342064267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:07,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:07,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:30:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730683611] [2023-11-12 02:30:07,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:07,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:30:07,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:30:07,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:30:07,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:30:07,911 INFO L87 Difference]: Start difference. First operand has 1960 states, 1100 states have (on average 1.6209090909090909) internal successors, (1783), 1617 states have internal predecessors, (1783), 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 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2023-11-12 02:30:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:09,544 INFO L93 Difference]: Finished difference Result 2325 states and 2752 transitions. [2023-11-12 02:30:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:30:09,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 59 [2023-11-12 02:30:09,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:09,592 INFO L225 Difference]: With dead ends: 2325 [2023-11-12 02:30:09,592 INFO L226 Difference]: Without dead ends: 2306 [2023-11-12 02:30:09,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:30:09,597 INFO L413 NwaCegarLoop]: 2033 mSDtfsCounter, 727 mSDsluCounter, 8244 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 10277 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:09,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 10277 Invalid, 411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [160 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-12 02:30:09,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2023-11-12 02:30:09,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2069. [2023-11-12 02:30:09,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1200 states have (on average 1.5725) internal successors, (1887), 1694 states have internal predecessors, (1887), 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) [2023-11-12 02:30:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2512 transitions. [2023-11-12 02:30:09,823 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2512 transitions. Word has length 59 [2023-11-12 02:30:09,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:09,823 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2512 transitions. [2023-11-12 02:30:09,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2023-11-12 02:30:09,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2512 transitions. [2023-11-12 02:30:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 02:30:09,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:09,829 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 02:30:09,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:10,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:10,045 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)] === [2023-11-12 02:30:10,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:10,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1968585835, now seen corresponding path program 1 times [2023-11-12 02:30:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:30:10,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312279901] [2023-11-12 02:30:10,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:10,048 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 [2023-11-12 02:30:10,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:30:10,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:30:10,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:11,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:30:11,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:11,456 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:30:11,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:30:11,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:30:11,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312279901] [2023-11-12 02:30:11,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312279901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:11,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:11,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:11,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979635987] [2023-11-12 02:30:11,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:11,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:11,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:30:11,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:11,459 INFO L87 Difference]: Start difference. First operand 2069 states and 2512 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-12 02:30:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:11,559 INFO L93 Difference]: Finished difference Result 2068 states and 2510 transitions. [2023-11-12 02:30:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) Word has length 64 [2023-11-12 02:30:11,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:11,575 INFO L225 Difference]: With dead ends: 2068 [2023-11-12 02:30:11,575 INFO L226 Difference]: Without dead ends: 2068 [2023-11-12 02:30:11,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:11,576 INFO L413 NwaCegarLoop]: 2072 mSDtfsCounter, 2024 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 4143 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:11,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 4143 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:30:11,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2023-11-12 02:30:11,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2068. [2023-11-12 02:30:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 1200 states have (on average 1.5716666666666668) internal successors, (1886), 1693 states have internal predecessors, (1886), 327 states have call successors, (327), 103 states have call predecessors, (327), 102 states have return successors, (297), 291 states have call predecessors, (297), 294 states have call successors, (297) [2023-11-12 02:30:11,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2510 transitions. [2023-11-12 02:30:11,686 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2510 transitions. Word has length 64 [2023-11-12 02:30:11,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:11,689 INFO L495 AbstractCegarLoop]: Abstraction has 2068 states and 2510 transitions. [2023-11-12 02:30:11,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-12 02:30:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2510 transitions. [2023-11-12 02:30:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-12 02:30:11,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:11,703 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1] [2023-11-12 02:30:11,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:30:11,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:11,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, virtblk_update_cache_modeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, virtblk_update_cache_modeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 473 more)] === [2023-11-12 02:30:11,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1127644509, now seen corresponding path program 1 times [2023-11-12 02:30:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:30:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673765626] [2023-11-12 02:30:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:11,927 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 [2023-11-12 02:30:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:30:11,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:30:11,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 (4)] Waiting until timeout for monitored process [2023-11-12 02:30:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:12,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:30:12,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:30:13,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:30:13,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:30:13,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673765626] [2023-11-12 02:30:13,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1673765626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:13,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:13,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:30:13,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965721578] [2023-11-12 02:30:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:13,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:30:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:30:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:30:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:30:13,177 INFO L87 Difference]: Start difference. First operand 2068 states and 2510 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-12 02:30:13,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:30:13,397 INFO L93 Difference]: Finished difference Result 3718 states and 4457 transitions. [2023-11-12 02:30:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:30:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 70 [2023-11-12 02:30:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:30:13,422 INFO L225 Difference]: With dead ends: 3718 [2023-11-12 02:30:13,422 INFO L226 Difference]: Without dead ends: 3718 [2023-11-12 02:30:13,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:30:13,424 INFO L413 NwaCegarLoop]: 2696 mSDtfsCounter, 1929 mSDsluCounter, 4713 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 7409 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:30:13,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 7409 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:30:13,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2023-11-12 02:30:13,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3134. [2023-11-12 02:30:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 2033 states have (on average 1.5996064928676832) internal successors, (3252), 2545 states have internal predecessors, (3252), 504 states have call successors, (504), 159 states have call predecessors, (504), 158 states have return successors, (489), 463 states have call predecessors, (489), 471 states have call successors, (489) [2023-11-12 02:30:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4245 transitions. [2023-11-12 02:30:13,558 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4245 transitions. Word has length 70 [2023-11-12 02:30:13,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:30:13,559 INFO L495 AbstractCegarLoop]: Abstraction has 3134 states and 4245 transitions. [2023-11-12 02:30:13,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-12 02:30:13,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4245 transitions. [2023-11-12 02:30:13,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 02:30:13,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:13,562 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2023-11-12 02:30:13,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:30:13,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:30:13,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, virtblk_update_cache_modeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, virtblk_update_cache_modeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 473 more)] === [2023-11-12 02:30:13,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:13,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1906487682, now seen corresponding path program 1 times [2023-11-12 02:30:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:30:13,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581076731] [2023-11-12 02:30:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:13,785 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 [2023-11-12 02:30:13,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:30:13,787 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:30:13,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c95c3b35-42d9-4177-85b9-51dd979067a1/bin/uautomizer-verify-uTZkv6EMXl/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 (5)] Waiting until timeout for monitored process [2023-11-12 02:30:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:30:14,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:30:14,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:30:14,772 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:30:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-12 02:30:15,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:30:15,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:30:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581076731] [2023-11-12 02:30:15,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581076731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:30:15,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:30:15,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:30:15,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16394382] [2023-11-12 02:30:15,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:30:15,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:30:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:30:15,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:30:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:30:15,102 INFO L87 Difference]: Start difference. First operand 3134 states and 4245 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12)