./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire --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 c92169288ba10e606aecd7ff04f59d0eb48b56f4c981fd9086bac53fae53e7ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:13:58,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:13:58,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:13:58,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:13:58,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:13:58,744 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:13:58,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:13:58,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:13:58,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:13:58,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:13:58,758 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:13:58,758 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:13:58,759 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:13:58,761 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:13:58,761 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:13:58,762 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:13:58,762 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:13:58,763 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:13:58,764 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:13:58,764 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:13:58,765 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:13:58,766 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:13:58,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:13:58,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:13:58,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:13:58,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:13:58,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:13:58,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:13:58,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:13:58,771 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:13:58,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:13:58,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:13:58,773 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:13:58,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:13:58,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:13:58,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:13:58,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:13:58,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:13:58,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:13:58,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:13:58,776 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:13:58,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:13:58,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:13:58,778 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:13:58,779 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:13:58,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:13:58,780 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_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c92169288ba10e606aecd7ff04f59d0eb48b56f4c981fd9086bac53fae53e7ad [2023-11-23 21:13:59,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:13:59,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:13:59,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:13:59,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:13:59,136 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:13:59,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i [2023-11-23 21:14:02,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:04,811 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:04,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i [2023-11-23 21:14:04,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/361efeb0d/2c6c1a796071486ead1b35ccdebf3f77/FLAG1c0b350e3 [2023-11-23 21:14:04,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/361efeb0d/2c6c1a796071486ead1b35ccdebf3f77 [2023-11-23 21:14:05,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:05,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:05,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:05,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:05,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:05,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f5ca5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:05, skipping insertion in model container [2023-11-23 21:14:05,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:05" (1/1) ... [2023-11-23 21:14:05,774 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:33,552 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memcpy_chk [2023-11-23 21:14:33,555 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memmove_chk [2023-11-23 21:14:33,557 WARN L635 FunctionHandler]: implicit declaration of function __builtin___mempcpy_chk [2023-11-23 21:14:33,558 WARN L635 FunctionHandler]: implicit declaration of function __builtin___memset_chk [2023-11-23 21:14:33,575 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcpy_chk [2023-11-23 21:14:33,576 WARN L635 FunctionHandler]: implicit declaration of function __builtin___stpcpy_chk [2023-11-23 21:14:33,577 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncpy_chk [2023-11-23 21:14:33,579 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strcat_chk [2023-11-23 21:14:33,580 WARN L635 FunctionHandler]: implicit declaration of function __builtin___strncat_chk [2023-11-23 21:14:33,659 WARN L635 FunctionHandler]: implicit declaration of function __builtin___vsnprintf_chk [2023-11-23 21:14:33,823 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strspn [2023-11-23 21:14:34,736 WARN L635 FunctionHandler]: implicit declaration of function __builtin_strcspn [2023-11-23 21:14:35,055 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. [2023-11-23 21:14:35,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@59d3c863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:35, skipping insertion in model container [2023-11-23 21:14:35,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:35,057 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:14:35,060 INFO L158 Benchmark]: Toolchain (without parser) took 30048.08ms. Allocated memory was 142.6MB in the beginning and 314.6MB in the end (delta: 172.0MB). Free memory was 74.3MB in the beginning and 112.6MB in the end (delta: -38.3MB). Peak memory consumption was 224.3MB. Max. memory is 16.1GB. [2023-11-23 21:14:35,061 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:14:35,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 30042.72ms. Allocated memory was 142.6MB in the beginning and 314.6MB in the end (delta: 172.0MB). Free memory was 74.3MB in the beginning and 112.6MB in the end (delta: -38.3MB). Peak memory consumption was 224.3MB. Max. memory is 16.1GB. [2023-11-23 21:14:35,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 30042.72ms. Allocated memory was 142.6MB in the beginning and 314.6MB in the end (delta: 172.0MB). Free memory was 74.3MB in the beginning and 112.6MB in the end (delta: -38.3MB). Peak memory consumption was 224.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 35941]: 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_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire --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 c92169288ba10e606aecd7ff04f59d0eb48b56f4c981fd9086bac53fae53e7ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:37,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:37,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-23 21:14:37,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:37,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:37,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:37,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:37,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:37,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:37,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:37,699 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:37,700 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:37,701 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:37,701 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:37,702 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:37,703 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:37,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:37,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:37,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:37,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:37,706 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:37,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:37,707 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:14:37,707 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:14:37,708 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:14:37,708 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:14:37,709 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:14:37,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:37,709 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:37,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:37,710 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:14:37,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:37,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:37,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:37,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:37,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:37,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:37,714 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:14:37,714 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:14:37,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:37,715 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:37,716 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:37,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:37,717 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_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c92169288ba10e606aecd7ff04f59d0eb48b56f4c981fd9086bac53fae53e7ad [2023-11-23 21:14:38,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:38,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:38,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:38,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:38,204 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:38,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i [2023-11-23 21:14:41,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:43,570 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:43,571 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/sv-benchmarks/c/goblint-coreutils/instrumented_interval_cksum_comb.i [2023-11-23 21:14:43,746 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/966747597/929f042d7d6a4e9baf26b41f970e4ed8/FLAGb7a42071e [2023-11-23 21:14:43,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f08103e4-6cd9-4825-8b8d-2df5fc75fb54/bin/utaipan-verify-mE87zJ7Ire/data/966747597/929f042d7d6a4e9baf26b41f970e4ed8 [2023-11-23 21:14:43,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:43,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:43,767 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:43,767 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:43,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:43,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f05958f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43, skipping insertion in model container [2023-11-23 21:14:43,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,482 INFO L177 MainTranslator]: Built tables and reachable declarations