./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:02:15,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:15,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:02:15,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:15,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:15,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:15,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:15,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:15,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:15,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:15,562 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:15,563 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:15,563 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:15,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:02:15,565 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:15,566 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:15,566 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:02:15,567 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:02:15,567 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:15,568 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:02:15,569 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:02:15,569 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:02:15,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:15,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:15,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:02:15,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:15,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:15,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:15,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:15,574 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:02:15,575 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:02:15,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:15,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:15,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:15,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:15,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:15,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:15,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:15,578 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:15,579 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:02:15,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:02:15,579 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:15,580 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:15,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:15,581 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_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 [2023-11-19 05:02:15,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:15,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:15,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:15,931 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:15,931 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:15,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-19 05:02:19,060 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:02:21,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:02:21,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-19 05:02:21,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/98a6fbfed/eebfe2e674a14d19bd4b6259e9836a4e/FLAG020fd71a7 [2023-11-19 05:02:21,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/98a6fbfed/eebfe2e674a14d19bd4b6259e9836a4e [2023-11-19 05:02:21,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:02:21,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:02:21,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:21,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:02:21,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:02:21,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:21" (1/1) ... [2023-11-19 05:02:21,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78802794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:21, skipping insertion in model container [2023-11-19 05:02:21,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:02:21" (1/1) ... [2023-11-19 05:02:22,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:02:51,671 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-19 05:02:51,676 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-19 05:02:51,678 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-19 05:02:51,688 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-19 05:02:51,690 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-19 05:02:51,692 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-19 05:02:51,693 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-19 05:02:51,697 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-19 05:02:51,703 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-19 05:02:51,781 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-19 05:02:51,968 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-19 05:02:52,717 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-19 05:02:53,194 ERROR L324 MainTranslator]: Unsupported Syntax: The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. [2023-11-19 05:02:53,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@361e4c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:02:53, skipping insertion in model container [2023-11-19 05:02:53,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:02:53,195 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:02:53,197 INFO L158 Benchmark]: Toolchain (without parser) took 31869.31ms. Allocated memory was 192.9MB in the beginning and 362.8MB in the end (delta: 169.9MB). Free memory was 119.6MB in the beginning and 205.0MB in the end (delta: -85.4MB). Peak memory consumption was 251.4MB. Max. memory is 16.1GB. [2023-11-19 05:02:53,198 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 146.8MB. Free memory was 92.0MB in the beginning and 91.9MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:02:53,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 31864.96ms. Allocated memory was 192.9MB in the beginning and 362.8MB in the end (delta: 169.9MB). Free memory was 119.6MB in the beginning and 205.0MB in the end (delta: -85.4MB). Peak memory consumption was 251.4MB. Max. memory is 16.1GB. [2023-11-19 05:02:53,201 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 146.8MB. Free memory was 92.0MB in the beginning and 91.9MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 31864.96ms. Allocated memory was 192.9MB in the beginning and 362.8MB in the end (delta: 169.9MB). Free memory was 119.6MB in the beginning and 205.0MB in the end (delta: -85.4MB). Peak memory consumption was 251.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36272]: Unsupported Syntax The second argument of the pthread_mutex_init is not a null pointer. This means that non-default attributes are used. We support only the default attributes. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:02:55,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:02:55,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 05:02:55,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:02:55,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:02:55,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:02:55,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:02:55,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:02:55,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:02:55,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:02:55,887 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:02:55,888 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:02:55,888 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:02:55,890 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:02:55,890 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:02:55,891 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:02:55,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:02:55,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:02:55,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:02:55,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:02:55,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:02:55,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:02:55,896 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:02:55,896 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:02:55,897 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:02:55,897 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:02:55,898 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:02:55,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:02:55,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:02:55,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:02:55,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:02:55,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:02:55,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:02:55,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:02:55,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:02:55,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:02:55,902 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:02:55,903 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:02:55,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:02:55,904 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:02:55,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:02:55,905 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_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b7426bfccbcde0aa079407402fe5952924228fa92314a7e6b9ec6c7d0431c9 [2023-11-19 05:02:56,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:02:56,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:02:56,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:02:56,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:02:56,423 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:02:56,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-19 05:02:59,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:03:02,088 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:03:02,089 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/sv-benchmarks/c/goblint-coreutils/instrumented_df_comb.i [2023-11-19 05:03:02,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/d48431d2d/72ea4c9d073d44aea8e4515f0f55fa58/FLAG89c95534e [2023-11-19 05:03:02,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93ffff05-1b83-4586-a902-bddf00f7ad5c/bin/utaipan-verify-t7M7D8N6sZ/data/d48431d2d/72ea4c9d073d44aea8e4515f0f55fa58 [2023-11-19 05:03:02,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:03:02,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:03:02,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:02,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:03:02,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:03:02,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:02" (1/1) ... [2023-11-19 05:03:02,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e372d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:02, skipping insertion in model container [2023-11-19 05:03:02,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:02" (1/1) ... [2023-11-19 05:03:02,969 INFO L177 MainTranslator]: Built tables and reachable declarations