./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_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_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh --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 e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:18:21,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:18:21,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 18:18:21,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:18:21,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:18:21,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:18:21,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:18:21,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:18:21,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:18:21,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:18:21,249 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:18:21,250 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:18:21,250 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:18:21,251 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:18:21,251 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:18:21,252 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:18:21,252 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:18:21,253 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:18:21,253 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:18:21,254 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:18:21,255 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:18:21,255 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:18:21,256 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:18:21,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:18:21,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:18:21,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:18:21,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:18:21,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:18:21,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:18:21,259 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 18:18:21,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:18:21,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:18:21,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:18:21,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:18:21,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:18:21,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:18:21,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:18:21,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:18:21,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:18:21,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:18:21,262 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:18:21,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:18:21,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:18:21,263 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:18:21,263 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:18:21,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:18:21,263 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_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 [2023-12-02 18:18:21,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:18:21,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:18:21,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:18:21,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:18:21,490 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:18:21,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-12-02 18:18:24,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:18:25,636 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:18:25,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-12-02 18:18:25,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/d3ab6a83e/2d0b23d82ff74027b97c92873965167a/FLAG2b3481bc7 [2023-12-02 18:18:25,794 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/d3ab6a83e/2d0b23d82ff74027b97c92873965167a [2023-12-02 18:18:25,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:18:25,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:18:25,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:18:25,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:18:25,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:18:25,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:18:25" (1/1) ... [2023-12-02 18:18:25,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cdec383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:25, skipping insertion in model container [2023-12-02 18:18:25,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:18:25" (1/1) ... [2023-12-02 18:18:26,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:18:52,955 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-12-02 18:18:52,956 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-12-02 18:18:52,957 WARN L638 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-12-02 18:18:52,958 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-12-02 18:18:52,960 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-12-02 18:18:52,961 WARN L638 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-12-02 18:18:52,962 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-12-02 18:18:52,964 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-12-02 18:18:52,965 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-12-02 18:18:53,005 WARN L638 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-12-02 18:18:53,115 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-12-02 18:18:53,761 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-12-02 18:18:54,042 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. [2023-12-02 18:18:54,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13d057ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:18:54, skipping insertion in model container [2023-12-02 18:18:54,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:18:54,044 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-12-02 18:18:54,046 INFO L158 Benchmark]: Toolchain (without parser) took 28246.22ms. Allocated memory was 199.2MB in the beginning and 289.4MB in the end (delta: 90.2MB). Free memory was 98.6MB in the beginning and 96.3MB in the end (delta: 2.3MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2023-12-02 18:18:54,046 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:18:54,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 28244.00ms. Allocated memory was 199.2MB in the beginning and 289.4MB in the end (delta: 90.2MB). Free memory was 97.7MB in the beginning and 96.3MB in the end (delta: 1.4MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2023-12-02 18:18:54,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 28244.00ms. Allocated memory was 199.2MB in the beginning and 289.4MB in the end (delta: 90.2MB). Free memory was 97.7MB in the beginning and 96.3MB in the end (delta: 1.4MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 36254]: 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_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh --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 e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:18:55,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:18:55,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 18:18:55,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:18:55,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:18:55,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:18:55,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:18:55,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:18:55,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:18:55,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:18:55,845 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:18:55,846 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:18:55,846 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:18:55,847 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:18:55,847 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:18:55,848 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:18:55,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:18:55,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:18:55,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:18:55,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:18:55,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:18:55,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:18:55,852 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 18:18:55,853 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 18:18:55,853 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 18:18:55,854 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 18:18:55,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 18:18:55,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:18:55,855 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:18:55,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:18:55,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 18:18:55,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:18:55,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:18:55,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:18:55,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:18:55,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:18:55,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:18:55,858 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 18:18:55,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 18:18:55,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:18:55,858 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:18:55,859 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:18:55,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:18:55,859 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_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1cb53b0b4a16da3dbf2f20341c878664cce096875bbfc489951f2df98de6675 [2023-12-02 18:18:56,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:18:56,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:18:56,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:18:56,171 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:18:56,172 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:18:56,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-12-02 18:18:58,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:19:00,278 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:19:00,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/sv-benchmarks/c/goblint-coreutils/instrumented_tail_comb.i [2023-12-02 18:19:00,420 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/6c219fda1/423eeab8370448d4bac2aaa9a98c862d/FLAGac10e2310 [2023-12-02 18:19:00,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1790a871-2de0-4c42-a55a-8fcf434b7236/bin/utaipan-verify-nQ1chXbOIh/data/6c219fda1/423eeab8370448d4bac2aaa9a98c862d [2023-12-02 18:19:00,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:19:00,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:19:00,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:19:00,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:19:00,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:19:00,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:19:00" (1/1) ... [2023-12-02 18:19:00,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc91060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:19:00, skipping insertion in model container [2023-12-02 18:19:00,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:19:00" (1/1) ... [2023-12-02 18:19:00,886 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:19:28,441 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-12-02 18:19:28,442 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-12-02 18:19:28,443 WARN L638 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-12-02 18:19:28,444 WARN L638 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-12-02 18:19:28,446 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-12-02 18:19:28,447 WARN L638 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-12-02 18:19:28,448 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-12-02 18:19:28,450 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-12-02 18:19:28,451 WARN L638 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-12-02 18:19:28,488 WARN L638 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-12-02 18:19:28,599 WARN L638 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-12-02 18:19:29,066 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: cannot determine size of incomplete type at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValueAndOffsetsStructAndUnion(TypeSizeAndOffsetComputer.java:233) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:184) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:121) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1023) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:963) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1679) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 18:19:29,072 INFO L158 Benchmark]: Toolchain (without parser) took 28634.92ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 72.4MB in the beginning and 105.9MB in the end (delta: -33.5MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2023-12-02 18:19:29,073 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:19:29,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 28633.06ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 72.4MB in the beginning and 105.9MB in the end (delta: -33.5MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2023-12-02 18:19:29,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 69.2MB. Free memory was 45.2MB in the beginning and 45.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 28633.06ms. Allocated memory was 142.6MB in the beginning and 220.2MB in the end (delta: 77.6MB). Free memory was 72.4MB in the beginning and 105.9MB in the end (delta: -33.5MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: cannot determine size of incomplete type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: cannot determine size of incomplete type: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValueAndOffsetsStructAndUnion(TypeSizeAndOffsetComputer.java:233) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: cannot determine size of incomplete type