./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 793a6c625c75092f747de022bbd4fd421346f4483d489a12fa5057c55b9e4cfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:31:38,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:31:38,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 20:31:38,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:31:38,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:31:38,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:31:38,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:31:38,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:31:38,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:31:38,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:31:38,789 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:31:38,789 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:31:38,790 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:31:38,791 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:31:38,791 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:31:38,792 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:31:38,793 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:31:38,793 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:31:38,794 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:31:38,795 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:31:38,796 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:31:38,796 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:31:38,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:31:38,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:31:38,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:31:38,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:31:38,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:31:38,801 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:31:38,801 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:31:38,802 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:31:38,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:31:38,803 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:31:38,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:31:38,804 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:31:38,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:31:38,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:31:38,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:38,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:31:38,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:31:38,806 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:31:38,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:31:38,807 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:31:38,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:31:38,808 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 793a6c625c75092f747de022bbd4fd421346f4483d489a12fa5057c55b9e4cfa [2023-11-06 20:31:39,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:31:39,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:31:39,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:31:39,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:31:39,129 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:31:39,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i [2023-11-06 20:31:42,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:31:42,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:31:42,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i [2023-11-06 20:31:42,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/aa4ca22ba/e660222cc6d5453bab0645d314165223/FLAG6f8642185 [2023-11-06 20:31:42,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/aa4ca22ba/e660222cc6d5453bab0645d314165223 [2023-11-06 20:31:42,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:31:42,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:31:42,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:42,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:31:42,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:31:42,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:42" (1/1) ... [2023-11-06 20:31:42,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdf7640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:42, skipping insertion in model container [2023-11-06 20:31:42,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:42" (1/1) ... [2023-11-06 20:31:43,056 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:43,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:43,917 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) [2023-11-06 20:31:43,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9398a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:43, skipping insertion in model container [2023-11-06 20:31:43,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:43,919 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:31:43,921 INFO L158 Benchmark]: Toolchain (without parser) took 982.96ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 75.7MB in the beginning and 114.4MB in the end (delta: -38.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-06 20:31:43,922 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:31:43,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 979.12ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 75.3MB in the beginning and 114.4MB in the end (delta: -39.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2023-11-06 20:31:43,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 979.12ms. Allocated memory was 123.7MB in the beginning and 172.0MB in the end (delta: 48.2MB). Free memory was 75.3MB in the beginning and 114.4MB in the end (delta: -39.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4186]: 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_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 793a6c625c75092f747de022bbd4fd421346f4483d489a12fa5057c55b9e4cfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:31:46,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:31:46,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-06 20:31:46,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:31:46,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:31:46,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:31:46,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:31:46,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:31:46,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:31:46,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:31:46,492 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:31:46,493 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:31:46,494 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:31:46,494 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:31:46,495 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:31:46,496 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:31:46,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:31:46,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:31:46,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:31:46,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:31:46,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:31:46,501 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:31:46,501 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:31:46,502 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:31:46,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:31:46,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:31:46,504 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:31:46,508 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:31:46,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:31:46,509 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:31:46,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:31:46,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:31:46,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:31:46,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:46,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:31:46,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:31:46,513 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:31:46,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:31:46,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:31:46,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:31:46,514 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 793a6c625c75092f747de022bbd4fd421346f4483d489a12fa5057c55b9e4cfa [2023-11-06 20:31:46,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:31:46,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:31:46,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:31:46,974 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:31:46,974 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:31:46,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i [2023-11-06 20:31:50,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:31:50,848 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:31:50,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i [2023-11-06 20:31:50,919 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/626bcfdfc/07c0266fb6d84819bb8338a87ab59f60/FLAGb4dc0d756 [2023-11-06 20:31:50,940 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/data/626bcfdfc/07c0266fb6d84819bb8338a87ab59f60 [2023-11-06 20:31:50,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:31:50,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:31:50,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:50,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:31:50,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:31:50,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,959 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ca799f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50, skipping insertion in model container [2023-11-06 20:31:50,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:52,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:52,399 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:31:52,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:52,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:52,697 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:31:52,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:53,002 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:31:53,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53 WrapperNode [2023-11-06 20:31:53,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:53,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:31:53,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:31:53,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:31:53,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,157 INFO L138 Inliner]: procedures = 122, calls = 424, calls flagged for inlining = 51, calls inlined = 47, statements flattened = 1184 [2023-11-06 20:31:53,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:31:53,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:31:53,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:31:53,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:31:53,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:31:53,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:31:53,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:31:53,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:31:53,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (1/1) ... [2023-11-06 20:31:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:53,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:31:53,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:31:53,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:31:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure raw_open [2023-11-06 20:31:53,488 INFO L138 BoogieDeclarations]: Found implementation of procedure raw_open [2023-11-06 20:31:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 20:31:53,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:31:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-11-06 20:31:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-11-06 20:31:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-06 20:31:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 20:31:53,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 20:31:53,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 20:31:53,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 20:31:53,490 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_read_iter [2023-11-06 20:31:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_read_iter [2023-11-06 20:31:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 20:31:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 20:31:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-06 20:31:53,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-06 20:31:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure bind_get [2023-11-06 20:31:53,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_get [2023-11-06 20:31:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 20:31:53,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 20:31:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-06 20:31:53,495 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-06 20:31:53,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 20:31:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 20:31:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 20:31:53,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 20:31:53,496 INFO L130 BoogieDeclarations]: Found specification of procedure bind_set [2023-11-06 20:31:53,497 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_set [2023-11-06 20:31:53,497 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2023-11-06 20:31:53,498 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2023-11-06 20:31:53,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-06 20:31:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-06 20:31:53,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:31:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:31:53,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:31:53,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-06 20:31:53,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-06 20:31:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-06 20:31:53,500 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-06 20:31:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:31:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:31:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:31:53,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:31:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-06 20:31:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-06 20:31:53,501 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-06 20:31:53,501 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-06 20:31:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:31:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:31:53,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:31:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:31:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_fsync [2023-11-06 20:31:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_fsync [2023-11-06 20:31:53,503 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 20:31:53,503 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 20:31:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:31:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:31:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-06 20:31:53,504 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-06 20:31:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-06 20:31:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-06 20:31:53,505 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-06 20:31:53,505 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-11-06 20:31:53,506 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-11-06 20:31:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-06 20:31:53,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-06 20:31:53,507 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_write_iter [2023-11-06 20:31:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_write_iter [2023-11-06 20:31:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-11-06 20:31:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-11-06 20:31:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:31:53,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:31:53,508 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-06 20:31:53,509 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-06 20:31:53,936 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:31:53,939 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:31:55,136 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 20:31:58,068 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:31:58,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:31:58,084 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:31:58,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:58 BoogieIcfgContainer [2023-11-06 20:31:58,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:31:58,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:31:58,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:31:58,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:31:58,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:31:50" (1/3) ... [2023-11-06 20:31:58,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143f092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:58, skipping insertion in model container [2023-11-06 20:31:58,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:53" (2/3) ... [2023-11-06 20:31:58,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143f092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:58, skipping insertion in model container [2023-11-06 20:31:58,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:58" (3/3) ... [2023-11-06 20:31:58,097 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--char--raw.ko-entry_point.cil.out.i [2023-11-06 20:31:58,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:31:58,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 146 error locations. [2023-11-06 20:31:58,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:31:58,193 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e8ce96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:31:58,193 INFO L358 AbstractCegarLoop]: Starting to check reachability of 146 error locations. [2023-11-06 20:31:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 640 states, 380 states have (on average 1.6236842105263158) internal successors, (617), 534 states have internal predecessors, (617), 85 states have call successors, (85), 29 states have call predecessors, (85), 28 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-11-06 20:31:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-06 20:31:58,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:31:58,215 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:31:58,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_memsetErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [raw_openErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, raw_openErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, raw_openErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2023-11-06 20:31:58,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:31:58,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1366557124, now seen corresponding path program 1 times [2023-11-06 20:31:58,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:31:58,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [439198386] [2023-11-06 20:31:58,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:31:58,248 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 [2023-11-06 20:31:58,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:31:58,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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) [2023-11-06 20:31:58,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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 [2023-11-06 20:31:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:31:59,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 20:31:59,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:31:59,067 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-06 20:31:59,067 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:31:59,068 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:31:59,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [439198386] [2023-11-06 20:31:59,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [439198386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:31:59,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:31:59,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:31:59,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283237207] [2023-11-06 20:31:59,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:31:59,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 20:31:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:31:59,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 20:31:59,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:31:59,130 INFO L87 Difference]: Start difference. First operand has 640 states, 380 states have (on average 1.6236842105263158) internal successors, (617), 534 states have internal predecessors, (617), 85 states have call successors, (85), 29 states have call predecessors, (85), 28 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-06 20:31:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:31:59,255 INFO L93 Difference]: Finished difference Result 637 states and 776 transitions. [2023-11-06 20:31:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 20:31:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2023-11-06 20:31:59,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:31:59,278 INFO L225 Difference]: With dead ends: 637 [2023-11-06 20:31:59,279 INFO L226 Difference]: Without dead ends: 630 [2023-11-06 20:31:59,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 20:31:59,285 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 20:31:59,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 20:31:59,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2023-11-06 20:31:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2023-11-06 20:31:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 376 states have (on average 1.6090425531914894) internal successors, (605), 524 states have internal predecessors, (605), 81 states have call successors, (81), 28 states have call predecessors, (81), 27 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2023-11-06 20:31:59,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 765 transitions. [2023-11-06 20:31:59,514 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 765 transitions. Word has length 70 [2023-11-06 20:31:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:31:59,515 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 765 transitions. [2023-11-06 20:31:59,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-06 20:31:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 765 transitions. [2023-11-06 20:31:59,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-06 20:31:59,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:31:59,519 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 20:31:59,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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)] Ended with exit code 0 [2023-11-06 20:31:59,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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 [2023-11-06 20:31:59,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_memsetErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [raw_openErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, raw_openErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, raw_openErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 143 more)] === [2023-11-06 20:31:59,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:31:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash -640811060, now seen corresponding path program 1 times [2023-11-06 20:31:59,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:31:59,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002918532] [2023-11-06 20:31:59,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:31:59,731 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 [2023-11-06 20:31:59,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:31:59,733 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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) [2023-11-06 20:31:59,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e70a0338-fd0f-4272-9f3f-21880866c13b/bin/utaipan-verify-FOvIYxoinp/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 [2023-11-06 20:32:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:32:01,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-06 20:32:01,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:32:02,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:02,834 INFO L217 Elim1Store]: Index analysis took 164 ms [2023-11-06 20:32:03,866 INFO L322 Elim1Store]: treesize reduction 824, result has 5.5 percent of original size [2023-11-06 20:32:03,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 31 case distinctions, treesize of input 1669 treesize of output 1659 [2023-11-06 20:32:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:06,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:06,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:06,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:06,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:06,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:07,061 INFO L217 Elim1Store]: Index analysis took 103 ms [2023-11-06 20:32:07,575 INFO L322 Elim1Store]: treesize reduction 611, result has 6.6 percent of original size [2023-11-06 20:32:07,576 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 2293 treesize of output 2261 [2023-11-06 20:32:08,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 20:32:08,827 INFO L217 Elim1Store]: Index analysis took 122 ms