./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX --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 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:59:21,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:59:21,411 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:59:21,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:59:21,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:59:21,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:59:21,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:59:21,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:59:21,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:59:21,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:59:21,451 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:59:21,451 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:59:21,452 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:59:21,453 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:59:21,453 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:59:21,454 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:59:21,455 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:59:21,455 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:59:21,456 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:59:21,461 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:59:21,466 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:59:21,467 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:59:21,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:59:21,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:59:21,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:59:21,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:59:21,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:59:21,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:59:21,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:59:21,474 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:59:21,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:59:21,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:59:21,477 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:59:21,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:59:21,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:59:21,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:21,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:59:21,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:59:21,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:59:21,479 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:59:21,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:59:21,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:59:21,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:59:21,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:59:21,482 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_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 [2023-11-12 00:59:21,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:59:21,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:59:21,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:59:21,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:59:21,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:59:21,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-12 00:59:25,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:59:27,553 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:59:27,554 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-12 00:59:27,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/62512a724/7d665189c7434036ae9d4abcf2f786df/FLAG3b2876558 [2023-11-12 00:59:27,914 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/62512a724/7d665189c7434036ae9d4abcf2f786df [2023-11-12 00:59:27,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:59:27,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:59:27,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:27,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:59:27,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:59:27,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:27" (1/1) ... [2023-11-12 00:59:27,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e8b5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:27, skipping insertion in model container [2023-11-12 00:59:27,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:27" (1/1) ... [2023-11-12 00:59:28,619 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:03,284 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-12 01:00:03,286 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-12 01:00:03,287 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-12 01:00:03,288 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-12 01:00:03,305 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-12 01:00:03,309 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-12 01:00:03,310 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-12 01:00:03,313 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-12 01:00:03,322 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-12 01:00:03,394 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-12 01:00:03,606 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-12 01:00:04,480 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-12 01:00:05,102 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. [2023-11-12 01:00:05,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6d4bf23d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:05, skipping insertion in model container [2023-11-12 01:00:05,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:05,104 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 01:00:05,107 INFO L158 Benchmark]: Toolchain (without parser) took 37180.96ms. Allocated memory was 178.3MB in the beginning and 348.1MB in the end (delta: 169.9MB). Free memory was 105.6MB in the beginning and 154.1MB in the end (delta: -48.5MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. [2023-11-12 01:00:05,108 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 01:00:05,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 37172.63ms. Allocated memory was 178.3MB in the beginning and 348.1MB in the end (delta: 169.9MB). Free memory was 105.2MB in the beginning and 154.1MB in the end (delta: -49.0MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. [2023-11-12 01:00:05,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 117.4MB. Free memory was 85.7MB in the beginning and 85.7MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 37172.63ms. Allocated memory was 178.3MB in the beginning and 348.1MB in the end (delta: 169.9MB). Free memory was 105.2MB in the beginning and 154.1MB in the end (delta: -49.0MB). Peak memory consumption was 206.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 37852]: 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_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX --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 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:07,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:07,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-12 01:00:07,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:07,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:07,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:07,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:07,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:07,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:07,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:07,855 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:07,855 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:07,856 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:07,858 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:07,858 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:07,859 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:07,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:07,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:00:07,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:07,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:00:07,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:07,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:00:07,864 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:00:07,864 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 01:00:07,865 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:00:07,865 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 01:00:07,866 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:00:07,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:00:07,867 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:07,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:07,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 01:00:07,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:07,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:07,870 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:07,870 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:07,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:00:07,871 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 01:00:07,871 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 01:00:07,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:00:07,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:07,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:07,873 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_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 [2023-11-12 01:00:08,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:08,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:08,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:08,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:08,428 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:08,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-12 01:00:11,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:13,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:13,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-12 01:00:14,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/61840af7e/d359b2c09c664fcd90779935dd98d1bc/FLAGe34867f4b [2023-11-12 01:00:14,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28f88426-9005-4a0e-a2bb-8d29053f8b48/bin/utaipan-verify-NcY6lQBIFX/data/61840af7e/d359b2c09c664fcd90779935dd98d1bc [2023-11-12 01:00:14,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:14,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:14,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:14,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:14,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:14,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:14" (1/1) ... [2023-11-12 01:00:14,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7727f7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:14, skipping insertion in model container [2023-11-12 01:00:14,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:14" (1/1) ... [2023-11-12 01:00:14,877 INFO L177 MainTranslator]: Built tables and reachable declarations