./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 0e0057cc 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_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:52:06,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:06,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:52:06,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:06,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:06,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:06,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:06,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:06,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:06,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:06,715 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:06,716 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:06,717 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:06,718 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:06,718 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:06,719 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:06,720 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:06,721 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:06,722 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:06,723 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:06,723 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:06,725 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:06,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:06,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:06,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:06,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:06,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:06,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:06,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:06,731 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:06,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:06,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:06,732 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:06,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:06,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:06,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:06,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:06,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:06,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:06,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:06,736 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:06,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:06,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:06,737 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:06,738 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:06,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:06,739 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_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 [2023-11-24 23:52:07,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:07,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:07,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:07,120 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:07,122 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:07,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-24 23:52:10,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:12,574 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:12,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-24 23:52:12,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/b1e299dc0/34665acfd2694ca090fde3d1ae22a784/FLAG8a4b79240 [2023-11-24 23:52:12,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/b1e299dc0/34665acfd2694ca090fde3d1ae22a784 [2023-11-24 23:52:12,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:12,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:13,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:13,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:13,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:13,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:12" (1/1) ... [2023-11-24 23:52:13,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dfda8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:13, skipping insertion in model container [2023-11-24 23:52:13,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:12" (1/1) ... [2023-11-24 23:52:13,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:52:47,885 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-24 23:52:47,887 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-24 23:52:47,889 WARN L638 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-24 23:52:47,891 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-24 23:52:47,904 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-24 23:52:47,909 WARN L638 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-24 23:52:47,911 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-24 23:52:47,914 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-24 23:52:47,918 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-24 23:52:47,998 WARN L638 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-24 23:52:48,171 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-24 23:52:49,022 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-24 23:52:49,670 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. [2023-11-24 23:52:49,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36aa4b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:49, skipping insertion in model container [2023-11-24 23:52:49,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:49,672 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 23:52:49,675 INFO L158 Benchmark]: Toolchain (without parser) took 36675.77ms. Allocated memory was 167.8MB in the beginning and 304.1MB in the end (delta: 136.3MB). Free memory was 96.7MB in the beginning and 123.5MB in the end (delta: -26.8MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. [2023-11-24 23:52:49,676 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 68.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:52:49,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 36669.35ms. Allocated memory was 167.8MB in the beginning and 304.1MB in the end (delta: 136.3MB). Free memory was 96.7MB in the beginning and 123.5MB in the end (delta: -26.8MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. [2023-11-24 23:52:49,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 123.7MB. Free memory was 68.9MB in the beginning and 68.8MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 36669.35ms. Allocated memory was 167.8MB in the beginning and 304.1MB in the end (delta: 136.3MB). Free memory was 96.7MB in the beginning and 123.5MB in the end (delta: -26.8MB). Peak memory consumption was 232.5MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:52:52,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:52,482 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:52:52,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:52,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:52,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:52,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:52,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:52,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:52,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:52,528 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:52,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:52,530 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:52,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:52,532 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:52,533 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:52,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:52,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:52,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:52,536 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:52,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:52,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:52,538 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:52:52,539 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:52:52,540 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:52:52,540 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:52:52,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:52:52,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:52,542 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:52,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:52,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:52:52,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:52,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:52,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:52,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:52,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:52,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:52,547 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:52:52,548 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:52:52,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:52,549 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:52,549 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:52,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:52,550 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_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983abd99a19c0fb2c299fef3c5e968ab6393a073f240f1283828f218ef38f546 [2023-11-24 23:52:53,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:53,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:53,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:53,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:53,135 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:53,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-24 23:52:56,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:58,639 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:58,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/sv-benchmarks/c/goblint-coreutils/instrumented_du_comb.i [2023-11-24 23:52:58,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/d8eeaf9d2/2244e65f313f4f5cb7035ec268d98599/FLAGceec8ae11 [2023-11-24 23:52:58,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d552a192-950d-41c2-a637-9d33c4263ad6/bin/utaipan-verify-SwPr7d2a91/data/d8eeaf9d2/2244e65f313f4f5cb7035ec268d98599 [2023-11-24 23:52:58,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:58,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:58,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:58,906 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:58,912 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:58,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:58" (1/1) ... [2023-11-24 23:52:58,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df629f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:58, skipping insertion in model container [2023-11-24 23:52:58,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:58" (1/1) ... [2023-11-24 23:52:59,675 INFO L177 MainTranslator]: Built tables and reachable declarations